diff --git a/doc/pub/week39/html/week39-reveal.html b/doc/pub/week39/html/week39-reveal.html
index de1877466..18053e6ba 100644
--- a/doc/pub/week39/html/week39-reveal.html
+++ b/doc/pub/week39/html/week39-reveal.html
@@ -2149,6 +2149,7 @@ t0, t1 = <span style="color: #B452CD">5</span>, <span style="color: #B452CD">50<
 
 theta = np.random.randn(<span style="color: #B452CD">2</span>,<span style="color: #B452CD">1</span>)
 
+<span style="color: #228B22"># note: here the number of minibatches is equal to the number of points!!</span>
 <span style="color: #8B008B; font-weight: bold">for</span> epoch <span style="color: #8B008B">in</span> <span style="color: #658b00">range</span>(n_epochs):
     <span style="color: #8B008B; font-weight: bold">for</span> i <span style="color: #8B008B">in</span> <span style="color: #658b00">range</span>(m):
         random_index = np.random.randint(m)
diff --git a/doc/pub/week39/html/week39-solarized.html b/doc/pub/week39/html/week39-solarized.html
index 5bdeff9da..d11927c73 100644
--- a/doc/pub/week39/html/week39-solarized.html
+++ b/doc/pub/week39/html/week39-solarized.html
@@ -2073,6 +2073,7 @@ t0, t1 = <span style="color: #B452CD">5</span>, <span style="color: #B452CD">50<
 
 theta = np.random.randn(<span style="color: #B452CD">2</span>,<span style="color: #B452CD">1</span>)
 
+<span style="color: #228B22"># note: here the number of minibatches is equal to the number of points!!</span>
 <span style="color: #8B008B; font-weight: bold">for</span> epoch <span style="color: #8B008B">in</span> <span style="color: #658b00">range</span>(n_epochs):
     <span style="color: #8B008B; font-weight: bold">for</span> i <span style="color: #8B008B">in</span> <span style="color: #658b00">range</span>(m):
         random_index = np.random.randint(m)
diff --git a/doc/pub/week39/html/week39.html b/doc/pub/week39/html/week39.html
index 43c6269bc..b39dde8d9 100644
--- a/doc/pub/week39/html/week39.html
+++ b/doc/pub/week39/html/week39.html
@@ -2150,6 +2150,7 @@ t0, t1 <span style="color: #666666">=</span> <span style="color: #666666">5</spa
 
 theta <span style="color: #666666">=</span> np<span style="color: #666666">.</span>random<span style="color: #666666">.</span>randn(<span style="color: #666666">2</span>,<span style="color: #666666">1</span>)
 
+<span style="color: #408080; font-style: italic"># note: here the number of minibatches is equal to the number of points!!</span>
 <span style="color: #008000; font-weight: bold">for</span> epoch <span style="color: #AA22FF; font-weight: bold">in</span> <span style="color: #008000">range</span>(n_epochs):
     <span style="color: #008000; font-weight: bold">for</span> i <span style="color: #AA22FF; font-weight: bold">in</span> <span style="color: #008000">range</span>(m):
         random_index <span style="color: #666666">=</span> np<span style="color: #666666">.</span>random<span style="color: #666666">.</span>randint(m)
diff --git a/doc/pub/week39/ipynb/ipynb-week39-src.tar.gz b/doc/pub/week39/ipynb/ipynb-week39-src.tar.gz
index 696a61d56..47ca9b95d 100644
Binary files a/doc/pub/week39/ipynb/ipynb-week39-src.tar.gz and b/doc/pub/week39/ipynb/ipynb-week39-src.tar.gz differ
diff --git a/doc/pub/week39/ipynb/week39.ipynb b/doc/pub/week39/ipynb/week39.ipynb
index 2dcb4789c..ea68590e1 100644
--- a/doc/pub/week39/ipynb/week39.ipynb
+++ b/doc/pub/week39/ipynb/week39.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "53fbfa45",
+   "id": "4da18cbd",
    "metadata": {
     "editable": true
    },
@@ -14,7 +14,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "aa78aae4",
+   "id": "eeefca75",
    "metadata": {
     "editable": true
    },
@@ -29,7 +29,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c52d8d3",
+   "id": "464181a8",
    "metadata": {
     "editable": true
    },
@@ -55,7 +55,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cf70b513",
+   "id": "26702e1b",
    "metadata": {
     "editable": true
    },
@@ -67,7 +67,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7fe5a096",
+   "id": "31f56ea9",
    "metadata": {
     "editable": true
    },
@@ -86,7 +86,7 @@
   {
    "cell_type": "code",
    "execution_count": 1,
-   "id": "7b1ebe9a",
+   "id": "282e7573",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -143,7 +143,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3b07fa34",
+   "id": "1f8dcd12",
    "metadata": {
     "editable": true
    },
@@ -155,7 +155,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "79436191",
+   "id": "980d6f9f",
    "metadata": {
     "editable": true
    },
@@ -170,7 +170,7 @@
   {
    "cell_type": "code",
    "execution_count": 2,
-   "id": "249e43db",
+   "id": "55700b74",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -223,7 +223,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "35e54cb1",
+   "id": "c1c0b353",
    "metadata": {
     "editable": true
    },
@@ -238,7 +238,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e0c927ce",
+   "id": "6aea3ae5",
    "metadata": {
     "editable": true
    },
@@ -258,7 +258,7 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "id": "dacaf34d",
+   "id": "8ae8373e",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -312,7 +312,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ed245882",
+   "id": "c915f004",
    "metadata": {
     "editable": true
    },
@@ -331,7 +331,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "58312afe",
+   "id": "f34656f4",
    "metadata": {
     "editable": true
    },
@@ -348,7 +348,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "802e4916",
+   "id": "a5be22bb",
    "metadata": {
     "editable": true
    },
@@ -363,7 +363,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d4d65855",
+   "id": "178e875b",
    "metadata": {
     "editable": true
    },
@@ -373,7 +373,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4c79aec3",
+   "id": "d8d3ac0d",
    "metadata": {
     "editable": true
    },
@@ -389,7 +389,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d629835c",
+   "id": "fad8f4a0",
    "metadata": {
     "editable": true
    },
@@ -401,7 +401,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "eecfd699",
+   "id": "31a4cebe",
    "metadata": {
     "editable": true
    },
@@ -412,7 +412,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0eccb2e0",
+   "id": "5fa46307",
    "metadata": {
     "editable": true
    },
@@ -424,7 +424,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1ed67a6e",
+   "id": "3a286ac5",
    "metadata": {
     "editable": true
    },
@@ -434,7 +434,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "83839b6d",
+   "id": "490a9950",
    "metadata": {
     "editable": true
    },
@@ -448,7 +448,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8424c771",
+   "id": "b9148a9b",
    "metadata": {
     "editable": true
    },
@@ -460,7 +460,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1e793448",
+   "id": "1995aab9",
    "metadata": {
     "editable": true
    },
@@ -470,7 +470,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e0f3598c",
+   "id": "1a223dab",
    "metadata": {
     "editable": true
    },
@@ -482,7 +482,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d373502f",
+   "id": "53bbf105",
    "metadata": {
     "editable": true
    },
@@ -494,7 +494,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4a973764",
+   "id": "62940c9c",
    "metadata": {
     "editable": true
    },
@@ -514,7 +514,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "50a08bc7",
+   "id": "7af3608a",
    "metadata": {
     "editable": true
    },
@@ -530,7 +530,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9fbcf11a",
+   "id": "e245c4f5",
    "metadata": {
     "editable": true
    },
@@ -546,7 +546,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ae9f1c74",
+   "id": "92952cd4",
    "metadata": {
     "editable": true
    },
@@ -557,7 +557,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ff816428",
+   "id": "0a4611b1",
    "metadata": {
     "editable": true
    },
@@ -569,7 +569,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1d8e23e2",
+   "id": "34b4fd1c",
    "metadata": {
     "editable": true
    },
@@ -579,7 +579,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "29c27a39",
+   "id": "916ebdc3",
    "metadata": {
     "editable": true
    },
@@ -591,7 +591,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "be705d27",
+   "id": "34ed3c1a",
    "metadata": {
     "editable": true
    },
@@ -601,7 +601,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f8b5017b",
+   "id": "2a839f6a",
    "metadata": {
     "editable": true
    },
@@ -613,7 +613,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "80067acb",
+   "id": "7227d5ad",
    "metadata": {
     "editable": true
    },
@@ -635,7 +635,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cc79eb39",
+   "id": "cc0cd17c",
    "metadata": {
     "editable": true
    },
@@ -648,7 +648,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "02c931ed",
+   "id": "a4c827e2",
    "metadata": {
     "editable": true
    },
@@ -661,7 +661,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e8961c31",
+   "id": "4a3afce5",
    "metadata": {
     "editable": true
    },
@@ -671,7 +671,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e5367208",
+   "id": "31c3919d",
    "metadata": {
     "editable": true
    },
@@ -689,7 +689,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bf37ee7e",
+   "id": "eee0d72f",
    "metadata": {
     "editable": true
    },
@@ -699,7 +699,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1d5b038a",
+   "id": "95a1a016",
    "metadata": {
     "editable": true
    },
@@ -714,7 +714,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "188556e8",
+   "id": "6350db33",
    "metadata": {
     "editable": true
    },
@@ -724,7 +724,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "55eed375",
+   "id": "cd441666",
    "metadata": {
     "editable": true
    },
@@ -738,7 +738,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "59672231",
+   "id": "e646b397",
    "metadata": {
     "editable": true
    },
@@ -748,7 +748,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3b75e9ab",
+   "id": "d68308ae",
    "metadata": {
     "editable": true
    },
@@ -762,7 +762,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a3943c2e",
+   "id": "ee2d12e5",
    "metadata": {
     "editable": true
    },
@@ -777,7 +777,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9c5e71db",
+   "id": "84bccb22",
    "metadata": {
     "editable": true
    },
@@ -794,7 +794,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5bdabf51",
+   "id": "29f68d8e",
    "metadata": {
     "editable": true
    },
@@ -806,7 +806,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "42764d94",
+   "id": "6b0ee8ea",
    "metadata": {
     "editable": true
    },
@@ -820,7 +820,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d8ef1cc2",
+   "id": "51ff4542",
    "metadata": {
     "editable": true
    },
@@ -835,7 +835,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ae539c7d",
+   "id": "e175ea67",
    "metadata": {
     "editable": true
    },
@@ -847,7 +847,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "51a30d45",
+   "id": "2b4d9a95",
    "metadata": {
     "editable": true
    },
@@ -858,7 +858,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2d6745ae",
+   "id": "93b00ab9",
    "metadata": {
     "editable": true
    },
@@ -886,7 +886,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f29e7884",
+   "id": "1d526da6",
    "metadata": {
     "editable": true
    },
@@ -908,7 +908,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7afc86fe",
+   "id": "d3bd8a33",
    "metadata": {
     "editable": true
    },
@@ -930,7 +930,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9091a450",
+   "id": "52ef888e",
    "metadata": {
     "editable": true
    },
@@ -942,7 +942,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "313a6215",
+   "id": "90229536",
    "metadata": {
     "editable": true
    },
@@ -979,7 +979,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "111fd8a6",
+   "id": "8300b610",
    "metadata": {
     "editable": true
    },
@@ -1007,7 +1007,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "90f7dbd3",
+   "id": "aeaa290c",
    "metadata": {
     "editable": true
    },
@@ -1037,7 +1037,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "781da653",
+   "id": "61e1729b",
    "metadata": {
     "editable": true
    },
@@ -1057,7 +1057,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b73579d5",
+   "id": "ce59b5e9",
    "metadata": {
     "editable": true
    },
@@ -1069,7 +1069,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d59eb62d",
+   "id": "431fb139",
    "metadata": {
     "editable": true
    },
@@ -1079,7 +1079,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6d519425",
+   "id": "94f28109",
    "metadata": {
     "editable": true
    },
@@ -1091,7 +1091,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c8276c05",
+   "id": "3f741ebd",
    "metadata": {
     "editable": true
    },
@@ -1103,7 +1103,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c756ffe2",
+   "id": "6cd3ad9d",
    "metadata": {
     "editable": true
    },
@@ -1115,7 +1115,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3074cc74",
+   "id": "457242c7",
    "metadata": {
     "editable": true
    },
@@ -1127,7 +1127,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a41ea068",
+   "id": "b5ea41a6",
    "metadata": {
     "editable": true
    },
@@ -1138,7 +1138,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c3f8b8ce",
+   "id": "33126ac0",
    "metadata": {
     "editable": true
    },
@@ -1151,7 +1151,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3f6b44a1",
+   "id": "9de7dff0",
    "metadata": {
     "editable": true
    },
@@ -1163,7 +1163,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "65f1cc04",
+   "id": "19297191",
    "metadata": {
     "editable": true
    },
@@ -1173,7 +1173,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ad133279",
+   "id": "9c36e158",
    "metadata": {
     "editable": true
    },
@@ -1185,7 +1185,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4d54b8c5",
+   "id": "1872af43",
    "metadata": {
     "editable": true
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@@ -1195,7 +1195,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e76160cd",
+   "id": "f2d44bd2",
    "metadata": {
     "editable": true
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@@ -1206,7 +1206,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6633bf53",
+   "id": "a3b3df86",
    "metadata": {
     "editable": true
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@@ -1218,7 +1218,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5d15cfa9",
+   "id": "c2ce932e",
    "metadata": {
     "editable": true
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@@ -1230,7 +1230,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7875717f",
+   "id": "e92ac09f",
    "metadata": {
     "editable": true
    },
@@ -1242,7 +1242,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c91ded01",
+   "id": "99a543fd",
    "metadata": {
     "editable": true
    },
@@ -1253,7 +1253,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f75dbb21",
+   "id": "22c1bddc",
    "metadata": {
     "editable": true
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@@ -1264,7 +1264,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2aebf554",
+   "id": "45c4aff4",
    "metadata": {
     "editable": true
    },
@@ -1276,7 +1276,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b5a287a3",
+   "id": "ee9ff1e3",
    "metadata": {
     "editable": true
    },
@@ -1286,7 +1286,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "10e8a74e",
+   "id": "346c6251",
    "metadata": {
     "editable": true
    },
@@ -1298,7 +1298,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bdf8cb92",
+   "id": "92344c6f",
    "metadata": {
     "editable": true
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@@ -1308,7 +1308,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9a8e4c96",
+   "id": "2fb7fc14",
    "metadata": {
     "editable": true
    },
@@ -1320,7 +1320,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4ec42b4e",
+   "id": "6b591811",
    "metadata": {
     "editable": true
    },
@@ -1330,7 +1330,7 @@
   },
   {
    "cell_type": "markdown",
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+   "id": "b09a499f",
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@@ -1342,7 +1342,7 @@
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@@ -1352,7 +1352,7 @@
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@@ -1364,7 +1364,7 @@
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@@ -1375,7 +1375,7 @@
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@@ -1406,7 +1406,7 @@
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@@ -1417,7 +1417,7 @@
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@@ -1431,7 +1431,7 @@
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@@ -1442,7 +1442,7 @@
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@@ -1455,7 +1455,7 @@
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@@ -1466,7 +1466,7 @@
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@@ -1484,7 +1484,7 @@
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@@ -1495,7 +1495,7 @@
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@@ -1510,7 +1510,7 @@
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@@ -1520,7 +1520,7 @@
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@@ -1534,7 +1534,7 @@
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@@ -1546,7 +1546,7 @@
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@@ -1557,7 +1557,7 @@
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@@ -1569,7 +1569,7 @@
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@@ -1580,7 +1580,7 @@
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@@ -1591,7 +1591,7 @@
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@@ -1603,7 +1603,7 @@
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@@ -1613,7 +1613,7 @@
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@@ -1625,7 +1625,7 @@
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@@ -1637,7 +1637,7 @@
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@@ -1649,7 +1649,7 @@
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@@ -1661,7 +1661,7 @@
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@@ -1672,7 +1672,7 @@
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@@ -1684,7 +1684,7 @@
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@@ -1694,7 +1694,7 @@
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@@ -1706,7 +1706,7 @@
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@@ -1716,7 +1716,7 @@
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@@ -1728,7 +1728,7 @@
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@@ -1748,7 +1748,7 @@
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@@ -1760,7 +1760,7 @@
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@@ -1770,7 +1770,7 @@
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@@ -1782,7 +1782,7 @@
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@@ -1792,7 +1792,7 @@
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@@ -1803,7 +1803,7 @@
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@@ -1815,7 +1815,7 @@
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@@ -1827,7 +1827,7 @@
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@@ -1839,7 +1839,7 @@
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@@ -1852,7 +1852,7 @@
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@@ -1863,7 +1863,7 @@
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@@ -1875,7 +1875,7 @@
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@@ -1891,7 +1891,7 @@
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@@ -1903,7 +1903,7 @@
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@@ -1914,7 +1914,7 @@
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@@ -1926,7 +1926,7 @@
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@@ -1936,7 +1936,7 @@
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@@ -1948,7 +1948,7 @@
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@@ -1958,7 +1958,7 @@
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@@ -1970,7 +1970,7 @@
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@@ -1980,7 +1980,7 @@
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@@ -1992,7 +1992,7 @@
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@@ -2016,7 +2016,7 @@
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@@ -2029,7 +2029,7 @@
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@@ -2040,7 +2040,7 @@
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@@ -2052,7 +2052,7 @@
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@@ -2062,7 +2062,7 @@
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@@ -2074,7 +2074,7 @@
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@@ -2088,7 +2088,7 @@
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@@ -2104,7 +2104,7 @@
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@@ -2114,7 +2114,7 @@
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@@ -2126,7 +2126,7 @@
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@@ -2136,7 +2136,7 @@
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@@ -2148,7 +2148,7 @@
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@@ -2162,7 +2162,7 @@
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@@ -2172,7 +2172,7 @@
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@@ -2183,7 +2183,7 @@
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@@ -2198,7 +2198,7 @@
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@@ -2208,7 +2208,7 @@
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@@ -2220,7 +2220,7 @@
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@@ -2232,7 +2232,7 @@
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@@ -2247,7 +2247,7 @@
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@@ -2260,7 +2260,7 @@
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@@ -2317,7 +2317,7 @@
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@@ -2328,7 +2328,7 @@
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@@ -2355,7 +2355,7 @@
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@@ -2367,7 +2367,7 @@
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@@ -2379,7 +2379,7 @@
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@@ -2389,7 +2389,7 @@
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@@ -2403,7 +2403,7 @@
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@@ -2413,7 +2413,7 @@
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@@ -2425,7 +2425,7 @@
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@@ -2436,7 +2436,7 @@
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@@ -2451,7 +2451,7 @@
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@@ -2465,7 +2465,7 @@
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@@ -2476,7 +2476,7 @@
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@@ -2537,7 +2537,7 @@
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@@ -2559,7 +2559,7 @@
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@@ -2571,7 +2571,7 @@
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@@ -2581,7 +2581,7 @@
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@@ -2598,7 +2598,7 @@
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@@ -2611,7 +2611,7 @@
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@@ -2624,7 +2624,7 @@
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@@ -2637,7 +2637,7 @@
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@@ -2651,7 +2651,7 @@
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@@ -2673,7 +2673,7 @@
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@@ -2688,7 +2688,7 @@
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@@ -2700,7 +2700,7 @@
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@@ -2713,7 +2713,7 @@
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   {
    "cell_type": "markdown",
-   "id": "3a184799",
+   "id": "7a98c322",
    "metadata": {
     "editable": true
    },
@@ -2727,7 +2727,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7fe2c739",
+   "id": "4db7c7ec",
    "metadata": {
     "editable": true
    },
@@ -2738,7 +2738,7 @@
   {
    "cell_type": "code",
    "execution_count": 13,
-   "id": "90624acc",
+   "id": "a2b36bb2",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2763,7 +2763,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "844e8019",
+   "id": "db5b47ef",
    "metadata": {
     "editable": true
    },
@@ -2779,7 +2779,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "148bcb51",
+   "id": "3bd989b7",
    "metadata": {
     "editable": true
    },
@@ -2800,7 +2800,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b4ab6685",
+   "id": "24704b66",
    "metadata": {
     "editable": true
    },
@@ -2823,7 +2823,7 @@
   {
    "cell_type": "code",
    "execution_count": 14,
-   "id": "69cbdd65",
+   "id": "dd7fa581",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2858,7 +2858,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f30332cd",
+   "id": "82cff81c",
    "metadata": {
     "editable": true
    },
@@ -2869,7 +2869,7 @@
   {
    "cell_type": "code",
    "execution_count": 15,
-   "id": "e01570bc",
+   "id": "5b1260aa",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2921,6 +2921,7 @@
     "\n",
     "theta = np.random.randn(2,1)\n",
     "\n",
+    "# note: here the number of minibatches is equal to the number of points!!\n",
     "for epoch in range(n_epochs):\n",
     "    for i in range(m):\n",
     "        random_index = np.random.randint(m)\n",
@@ -2944,7 +2945,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3282e79d",
+   "id": "233c78fb",
    "metadata": {
     "editable": true
    },
@@ -2954,7 +2955,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4c69c2c8",
+   "id": "b2fd93ed",
    "metadata": {
     "editable": true
    },
@@ -2969,7 +2970,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "52e6dc92",
+   "id": "199caa31",
    "metadata": {
     "editable": true
    },
@@ -2981,7 +2982,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3c9043ac",
+   "id": "41c76af5",
    "metadata": {
     "editable": true
    },
@@ -2999,7 +3000,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6ec6074f",
+   "id": "c78a32c6",
    "metadata": {
     "editable": true
    },
@@ -3018,7 +3019,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "409904fd",
+   "id": "a7408104",
    "metadata": {
     "editable": true
    },
@@ -3030,7 +3031,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7773c363",
+   "id": "e4dbbaf5",
    "metadata": {
     "editable": true
    },
@@ -3040,7 +3041,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b138dd03",
+   "id": "9d0c3d51",
    "metadata": {
     "editable": true
    },
@@ -3056,7 +3057,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f3a981e7",
+   "id": "531a93b7",
    "metadata": {
     "editable": true
    },
@@ -3068,7 +3069,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "19d4d326",
+   "id": "00119714",
    "metadata": {
     "editable": true
    },
@@ -3078,7 +3079,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6f4ec233",
+   "id": "3c08b7fe",
    "metadata": {
     "editable": true
    },
@@ -3090,7 +3091,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "80b2287a",
+   "id": "dcb56a9b",
    "metadata": {
     "editable": true
    },
@@ -3100,7 +3101,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f83f8752",
+   "id": "ce5865f1",
    "metadata": {
     "editable": true
    },
@@ -3112,7 +3113,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4babf4af",
+   "id": "c2602c26",
    "metadata": {
     "editable": true
    },
@@ -3128,7 +3129,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "162875aa",
+   "id": "b5519380",
    "metadata": {
     "editable": true
    },
@@ -3140,7 +3141,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "42da2213",
+   "id": "79641542",
    "metadata": {
     "editable": true
    },
@@ -3173,7 +3174,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "76c40c68",
+   "id": "08b0c266",
    "metadata": {
     "editable": true
    },
@@ -3185,7 +3186,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6aa27f9a",
+   "id": "ee233c3a",
    "metadata": {
     "editable": true
    },
@@ -3203,7 +3204,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ab85ddc4",
+   "id": "a0b332cd",
    "metadata": {
     "editable": true
    },
@@ -3213,7 +3214,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6349d4ac",
+   "id": "ff5708eb",
    "metadata": {
     "editable": true
    },
@@ -3244,7 +3245,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d414cf4b",
+   "id": "6d462166",
    "metadata": {
     "editable": true
    },
@@ -3259,7 +3260,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ae053391",
+   "id": "b6034fe7",
    "metadata": {
     "editable": true
    },
@@ -3277,7 +3278,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8b123165",
+   "id": "eb0c3e0c",
    "metadata": {
     "editable": true
    },
@@ -3289,7 +3290,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "180086fe",
+   "id": "acaa4805",
    "metadata": {
     "editable": true
    },
@@ -3301,7 +3302,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "950c7627",
+   "id": "4a31a273",
    "metadata": {
     "editable": true
    },
@@ -3319,7 +3320,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "43e6754e",
+   "id": "5eb002b0",
    "metadata": {
     "editable": true
    },
@@ -3342,7 +3343,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c233aa5f",
+   "id": "3f7b4c3a",
    "metadata": {
     "editable": true
    },
@@ -3360,7 +3361,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b2b5fa2e",
+   "id": "5ed8c41e",
    "metadata": {
     "editable": true
    },
@@ -3372,7 +3373,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "78f014d3",
+   "id": "b1ea2b88",
    "metadata": {
     "editable": true
    },
@@ -3384,7 +3385,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a79f4829",
+   "id": "d9c07193",
    "metadata": {
     "editable": true
    },
@@ -3396,7 +3397,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "43eb2ee4",
+   "id": "35c46884",
    "metadata": {
     "editable": true
    },
@@ -3408,7 +3409,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "805dd5cc",
+   "id": "76429fe8",
    "metadata": {
     "editable": true
    },
@@ -3420,7 +3421,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ea389ad8",
+   "id": "8de9249f",
    "metadata": {
     "editable": true
    },
@@ -3437,7 +3438,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "29c22980",
+   "id": "940a5d91",
    "metadata": {
     "editable": true
    },
@@ -3456,7 +3457,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "15ff24a8",
+   "id": "c6205b89",
    "metadata": {
     "editable": true
    },
@@ -3468,7 +3469,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c2050047",
+   "id": "65810115",
    "metadata": {
     "editable": true
    },
@@ -3488,7 +3489,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d07aa491",
+   "id": "6bc3cf1d",
    "metadata": {
     "editable": true
    },
@@ -3526,7 +3527,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f4eb855c",
+   "id": "43d0a20a",
    "metadata": {
     "editable": true
    },
@@ -3538,7 +3539,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b2b03e57",
+   "id": "0953d1bc",
    "metadata": {
     "editable": true
    },
@@ -3548,7 +3549,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ffb43d34",
+   "id": "7592ff35",
    "metadata": {
     "editable": true
    },
@@ -3560,7 +3561,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "643a528e",
+   "id": "d15370e5",
    "metadata": {
     "editable": true
    },
@@ -3571,7 +3572,7 @@
   {
    "cell_type": "code",
    "execution_count": 16,
-   "id": "272fd295",
+   "id": "8f5913e1",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3616,7 +3617,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7cdf6f19",
+   "id": "71c39e32",
    "metadata": {
     "editable": true
    },
@@ -3633,7 +3634,7 @@
   {
    "cell_type": "code",
    "execution_count": 17,
-   "id": "dcb74d34",
+   "id": "1efcd9fa",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3661,7 +3662,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8628fe47",
+   "id": "ab0908c5",
    "metadata": {
     "editable": true
    },
@@ -3676,7 +3677,7 @@
   {
    "cell_type": "code",
    "execution_count": 18,
-   "id": "f0cf0e3b",
+   "id": "a72cc755",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3720,7 +3721,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "65746580",
+   "id": "79758552",
    "metadata": {
     "editable": true
    },
@@ -3730,7 +3731,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6cb2fa5e",
+   "id": "748926f8",
    "metadata": {
     "editable": true
    },
@@ -3741,7 +3742,7 @@
   {
    "cell_type": "code",
    "execution_count": 19,
-   "id": "09981165",
+   "id": "e3a7c232",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3769,7 +3770,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "06842bac",
+   "id": "f74b1eb5",
    "metadata": {
     "editable": true
    },
@@ -3784,7 +3785,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d0a00ca6",
+   "id": "6d331ee9",
    "metadata": {
     "editable": true
    },
@@ -3795,7 +3796,7 @@
   {
    "cell_type": "code",
    "execution_count": 20,
-   "id": "b83d619c",
+   "id": "491edb7b",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3823,7 +3824,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "60667807",
+   "id": "3a02231c",
    "metadata": {
     "editable": true
    },
@@ -3834,7 +3835,7 @@
   {
    "cell_type": "code",
    "execution_count": 21,
-   "id": "e244e18d",
+   "id": "f9503d9c",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3859,7 +3860,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "027aa974",
+   "id": "06bc0ed4",
    "metadata": {
     "editable": true
    },
@@ -3870,7 +3871,7 @@
   {
    "cell_type": "code",
    "execution_count": 22,
-   "id": "458af951",
+   "id": "c979c105",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3906,7 +3907,7 @@
   {
    "cell_type": "code",
    "execution_count": 23,
-   "id": "8503a971",
+   "id": "b8a170e6",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3926,7 +3927,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c161f0c5",
+   "id": "b5e0d5ef",
    "metadata": {
     "editable": true
    },
@@ -3937,7 +3938,7 @@
   {
    "cell_type": "code",
    "execution_count": 24,
-   "id": "3ef079f8",
+   "id": "f7a31b7c",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3975,7 +3976,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "034338e5",
+   "id": "6952ed41",
    "metadata": {
     "editable": true
    },
@@ -3985,7 +3986,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3d49aee1",
+   "id": "31f37182",
    "metadata": {
     "editable": true
    },
@@ -3999,7 +4000,7 @@
   {
    "cell_type": "code",
    "execution_count": 25,
-   "id": "20fadbf2",
+   "id": "0f2ae76f",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -4021,7 +4022,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ab81f79d",
+   "id": "d747acf6",
    "metadata": {
     "editable": true
    },
@@ -4031,7 +4032,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "837788c6",
+   "id": "aed533c7",
    "metadata": {
     "editable": true
    },
@@ -4042,7 +4043,7 @@
   {
    "cell_type": "code",
    "execution_count": 26,
-   "id": "f38c1e61",
+   "id": "374f022a",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -4064,7 +4065,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6aa5cce6",
+   "id": "1e3c8997",
    "metadata": {
     "editable": true
    },
@@ -4077,7 +4078,7 @@
   {
    "cell_type": "code",
    "execution_count": 27,
-   "id": "c9b0afed",
+   "id": "25c470ee",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -4102,7 +4103,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "945e6e5d",
+   "id": "20cc39d9",
    "metadata": {
     "editable": true
    },
@@ -4114,7 +4115,7 @@
   {
    "cell_type": "code",
    "execution_count": 28,
-   "id": "ebaa43ed",
+   "id": "7604b990",
    "metadata": {
     "collapsed": false,
     "editable": true
diff --git a/doc/src/week39/week39.do.txt b/doc/src/week39/week39.do.txt
index 239fd85a7..222ebbb23 100644
--- a/doc/src/week39/week39.do.txt
+++ b/doc/src/week39/week39.do.txt
@@ -1478,6 +1478,7 @@ def learning_schedule(t):
 
 theta = np.random.randn(2,1)
 
+# note: here the number of minibatches is equal to the number of points!!
 for epoch in range(n_epochs):
     for i in range(m):
         random_index = np.random.randint(m)