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@@ -343,6 +343,11 @@ const thebe_selector_output = ".output, .cell_output"
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Week 43: Deep Learning: Constructing a Neural Network code and solving differential equations
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</a>
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</li>
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<li class="toctree-l1">
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<a class="reference internal" href="exercisesweek43.html">
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Exercises week 43
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</a>
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</li>
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</ul>
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<p aria-level="2" class="caption" role="heading">
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<span class="caption-text">
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@@ -761,10 +766,10 @@ covariance matrix through the <strong>np.linalg.eig()</strong> function.</p>
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</div>
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</div>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-0.1621766238509487
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3.735490390687699
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[[0.74336924 2.19036055]
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[2.19036055 7.50414881]]
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-0.1255057631975562
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3.579533981545493
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[[0.80708107 2.37821193]
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[2.37821193 8.11221557]]
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</pre></div>
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</div>
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</div>
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@@ -804,10 +809,10 @@ a more brute force way. Here we scale the mean values for each column of the des
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</div>
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</div>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>0.07865450504129884
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1.6463440100796987
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[[1. 0.63797452]
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[0.63797452 1. ]]
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>0.07588754093232836
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1.3745699019323765
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[[1. 0.60314576]
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[0.60314576 1. ]]
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</pre></div>
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</div>
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</div>
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@@ -836,30 +841,30 @@ this matrix we easily see that it is a positive definite matrix.</p>
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</div>
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</div>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>[[-0.00615047 -0.51495078]
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[-1.23076025 -3.95226818]
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[ 0.14038959 1.1457534 ]
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[ 0.7408594 2.69734853]
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[ 0.19517373 1.18571046]
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[-0.04178558 -0.58598227]
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[ 0.45796224 0.7947491 ]
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[ 0.3351443 0.35268457]
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[ 0.04648472 0.35436034]
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[-0.63731768 -1.47740516]]
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>[[-1.4664985 -5.74309684]
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[ 0.4437291 1.90952533]
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[ 1.55472805 4.78691713]
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[-1.49928561 -4.52502695]
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[ 1.17766528 3.5035492 ]
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[-1.53311882 -4.84616248]
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[ 0.58757487 2.2352456 ]
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[-1.60585931 -5.88080569]
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[ 1.30905952 3.50820404]
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[ 1.03200542 5.05165065]]
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0 1
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0 -0.006150 -0.514951
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1 -1.230760 -3.952268
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2 0.140390 1.145753
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3 0.740859 2.697349
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4 0.195174 1.185710
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5 -0.041786 -0.585982
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6 0.457962 0.794749
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7 0.335144 0.352685
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8 0.046485 0.354360
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9 -0.637318 -1.477405
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0 -1.466499 -5.743097
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1 0.443729 1.909525
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2 1.554728 4.786917
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3 -1.499286 -4.525027
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4 1.177665 3.503549
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5 -1.533119 -4.846162
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6 0.587575 2.235246
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7 -1.605859 -5.880806
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8 1.309060 3.508204
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9 1.032005 5.051651
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0 1
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0 1.000000 0.954148
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1 0.954148 1.000000
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0 1.000000 0.986472
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1 0.986472 1.000000
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</pre></div>
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</div>
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</div>
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@@ -916,40 +921,37 @@ this matrix we easily see that it is a positive definite matrix.</p>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span> 0 1 2 3 4 5 6 7 \
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0 0.0 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
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1 0.0 0.078267 0.080363 0.077060 0.080735 0.084346 0.068278 0.071704
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2 0.0 0.080363 0.084687 0.077184 0.081702 0.086410 0.067314 0.071070
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3 0.0 0.077060 0.077184 0.081107 0.083982 0.086548 0.074851 0.078039
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4 0.0 0.080735 0.081702 0.083982 0.087340 0.090475 0.076894 0.080380
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5 0.0 0.084346 0.086410 0.086548 0.090475 0.094304 0.078548 0.082355
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6 0.0 0.068278 0.067314 0.074851 0.076894 0.078548 0.071058 0.073683
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7 0.0 0.071704 0.071070 0.078039 0.080380 0.082355 0.073683 0.076547
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8 0.0 0.075284 0.075083 0.081283 0.083968 0.086326 0.076306 0.079429
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9 0.0 0.079000 0.079369 0.084535 0.087621 0.090437 0.078867 0.082274
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10 0.0 0.059805 0.058347 0.067435 0.068873 0.069916 0.065387 0.067507
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11 0.0 0.062733 0.061411 0.070367 0.072006 0.073253 0.067940 0.070248
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12 0.0 0.065842 0.064698 0.073442 0.075310 0.076791 0.070595 0.073109
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13 0.0 0.069136 0.068226 0.076654 0.078782 0.080535 0.073340 0.076079
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14 0.0 0.072615 0.072013 0.079987 0.082412 0.084486 0.076154 0.079138
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1 0.0 0.083504 0.075256 0.078921 0.075567 0.072065 0.068904 0.066579
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2 0.0 0.075256 0.068613 0.070518 0.067902 0.065165 0.061508 0.059695
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3 0.0 0.078921 0.070518 0.080620 0.076840 0.072951 0.073809 0.071199
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4 0.0 0.075567 0.067902 0.076840 0.073512 0.070072 0.070294 0.068019
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5 0.0 0.072065 0.065165 0.072951 0.070072 0.067082 0.066709 0.064764
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6 0.0 0.068904 0.061508 0.073809 0.070294 0.066709 0.069698 0.067255
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7 0.0 0.066579 0.059695 0.071199 0.068019 0.064764 0.067255 0.065071
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8 0.0 0.064363 0.057976 0.068705 0.065848 0.062910 0.064922 0.062985
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9 0.0 0.062226 0.056324 0.066296 0.063752 0.061123 0.062673 0.060974
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10 0.0 0.059775 0.053480 0.066103 0.063023 0.059897 0.063806 0.061651
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11 0.0 0.057936 0.052040 0.064062 0.061249 0.058385 0.061895 0.059951
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12 0.0 0.056217 0.050702 0.062151 0.059593 0.056978 0.060108 0.058364
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13 0.0 0.054609 0.049456 0.060358 0.058043 0.055668 0.058432 0.056880
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14 0.0 0.053099 0.048295 0.058671 0.056590 0.054443 0.056857 0.055488
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8 9 10 11 12 13 14
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0 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
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1 0.075284 0.079000 0.059805 0.062733 0.065842 0.069136 0.072615
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2 0.075083 0.079369 0.058347 0.061411 0.064698 0.068226 0.072013
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3 0.081283 0.084535 0.067435 0.070367 0.073442 0.076654 0.079987
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4 0.083968 0.087621 0.068873 0.072006 0.075310 0.078782 0.082412
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5 0.086326 0.090437 0.069916 0.073253 0.076791 0.080535 0.084486
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6 0.076306 0.078867 0.065387 0.067940 0.070595 0.073340 0.076154
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7 0.079429 0.082274 0.067507 0.070248 0.073109 0.076079 0.079138
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8 0.082598 0.085762 0.069592 0.072533 0.075613 0.078825 0.082151
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9 0.085762 0.089288 0.071587 0.074738 0.078051 0.081523 0.085141
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10 0.069592 0.071587 0.061178 0.063336 0.065565 0.067851 0.070172
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11 0.072533 0.074738 0.063336 0.065655 0.068057 0.070529 0.073050
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12 0.075613 0.078051 0.065565 0.068057 0.070647 0.073320 0.076057
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13 0.078825 0.081523 0.067851 0.070529 0.073320 0.076212 0.079184
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14 0.082151 0.085141 0.070172 0.073050 0.076057 0.079184 0.082414
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</pre></div>
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</div>
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>
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1 0.064363 0.062226 0.059775 0.057936 0.056217 0.054609 0.053099
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2 0.057976 0.056324 0.053480 0.052040 0.050702 0.049456 0.048295
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3 0.068705 0.066296 0.066103 0.064062 0.062151 0.060358 0.058671
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4 0.065848 0.063752 0.063023 0.061249 0.059593 0.058043 0.056590
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5 0.062910 0.061123 0.059897 0.058385 0.056978 0.055668 0.054443
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6 0.064922 0.062673 0.063806 0.061895 0.060108 0.058432 0.056857
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7 0.062985 0.060974 0.061651 0.059951 0.058364 0.056880 0.055488
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8 0.061136 0.059355 0.059595 0.058098 0.056703 0.055402 0.054185
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9 0.059355 0.057796 0.057619 0.056315 0.055105 0.053981 0.052934
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10 0.059595 0.057619 0.059363 0.057675 0.056097 0.054621 0.053236
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11 0.058098 0.056315 0.057675 0.056161 0.054750 0.053432 0.052199
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12 0.056703 0.055105 0.056097 0.054750 0.053497 0.052330 0.051241
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13 0.055402 0.053981 0.054621 0.053432 0.052330 0.051307 0.050356
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14 0.054185 0.052934 0.053236 0.052199 0.051241 0.050356 0.049538
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</pre></div>
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</div>
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</div>
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@@ -1138,10 +1140,10 @@ We can write our own code or simply use either the functionaly of <strong>numpy<
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</div>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span> 0 1
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0 3.847343 1.919895
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1 1.919895 1.934339
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[[3.8473429 1.91989533]
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[1.91989533 1.934339 ]]
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0 3.969573 1.988769
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1 1.988769 2.007390
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[[3.96957289 1.98876882]
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[1.98876882 2.00738983]]
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</pre></div>
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</div>
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</div>
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@@ -1168,8 +1170,8 @@ Our own code here is not very elegant and asks for obvious improvements. It is t
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</div>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Centered covariance using own code
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[[3.8473429 1.91989533]
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[1.91989533 1.934339 ]]
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[[3.96957289 1.98876882]
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[1.98876882 2.00738983]]
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</pre></div>
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</div>
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<img alt="_images/chapter8_65_1.png" src="_images/chapter8_65_1.png" />
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@@ -1229,16 +1231,16 @@ questions.</p>
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</div>
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<div class="cell_output docutils container">
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Eigenvalues of Covariance matrix
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5.035810431523915
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0.7458714725617228
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5.206079615468402
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0.7708831044105582
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First eigenvector
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[0.8502729 0.52634209]
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[0.84923841 0.52800959]
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Second eigenvector
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[-0.52634209 0.8502729 ]
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[-0.52800959 0.84923841]
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</pre></div>
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</div>
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<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Eigenvector of largest eigenvalue
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[-0.8502729 -0.52634209]
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[-0.84923841 -0.52800959]
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</pre></div>
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</div>
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</div>
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Reference in New Issue
Block a user