I'm having a hard time with the following exercise from Numerical Methods:
Let $f(t,x)=2tx, x(1)=1$ be initial value problem. Compute the expression of $x(t)$ and the exact value of $x(1.5)$.
We don't have a function of $x$, do we? Then, how am I supposed to calculate of the $x(1.5)$ with just that information?
Thank you.