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The exam will have around ten questions, some easy, some not so easy. For most questions, you will be asked to answer with Matlab code in correct syntax. E.g. **Problem 1:** (totally straightforward) Given a matrix $A$, write one line of Matlab code that would assign the 3rd row of $A$ into the variable $x$. **Problem 2:** (slightly tricky) Given a matrix $A$, write one line of Matlab code that convert the $j$th column of $A$ into a row vector and assign it to the variable $x$. **Problem 3:** (pretty straightforward) Given a vector $v$, write one or two lines of Matlab code that would return all the odd-numbered elements of $v$. **Problem 4:** (moderate) Write Matlab code that defines a function named ''mysin'' that computes $\sin(x)$ using the truncated power series \begin{equation*} \sin(x) \doteq \sum_{n=0}^{10} -1^{2n+1} \frac{x^{2n+1}}{(2n+1)!} \end{equation*}
