Cleaning up typos in project 3

doc/Projects/2018/Project3/html/Project3.html

@@ -44,7 +44,7 @@ div { text-align: justify; text-justify: inter-word; }
                2,
                None,
                '___sec1'),
-              ('Studying the credic card data set as possible project',
+              ('Studying the credit card data set as possible project',
                2,
                None,
                '___sec2'),
@@ -142,7 +142,7 @@ We propose also an alternative to the above. This is a project on using machine
 <p>
 This is a field with a large interest recently, spanning from studies of turbulence in meteorology to the solution of quantum mechanical systems.
 
-<h2 id="___sec2">Studying the credic card data set as possible project </h2>
+<h2 id="___sec2">Studying the credit card data set as possible project </h2>
 
 <p>
 We include this data set as an example on how one could study new data sets with the algorithms we have discussed during the lectures, using either your own codes or the functionality of <b>scikit-learn</b>, <b>tensorflow</b> or other Python packages.
@@ -263,13 +263,13 @@ $$
 
 <p>
 Write down the algorithm and the equations you need to implement.
-Find also the analytic solution to the problem.
+Find also the analytical solution to the problem.
 
 <h3 id="___sec10">Part b) </h3>
 
 <p>
 Implement the explicit scheme  algorithm and perform tests of the solution 
-for \( \Delta x=1/10 \), \( \Delta x=1/100 \) using  \( \Delta t \) as dictated by the stability limit of the explicit scheme. This stability scheme requires that \( \Delta t/\Delta x^2 \leq 1/2 \).
+for \( \Delta x=1/10 \), \( \Delta x=1/100 \) using  \( \Delta t \) as dictated by the stability limit of the explicit scheme. The stability criterion for the explicit scheme requires that \( \Delta t/\Delta x^2 \leq 1/2 \).
 
 <p>
 Study the solutions at two time points \( t_1 \) and \( t_2 \) where \( u(x,t_1) \) is smooth but still significantly curved