1. The problem statement, all variables and given/known data http://img853.imageshack.us/img853/5578/euler.png [Broken] 2. Relevant equations y_(n+1)=y_n+f(x_n,y_n)h 3. The attempt at a solution With n = 100 and step size h = 0.01, I got y_100 = 3.1515 I don't see how this is right, because the directions imply that it's supposed to be accurate to pi within 4 decimal places, but this last value is higher than pi. Also what does it mean by using different values of h, and still keeping n = 100? That doesn't make any sense because then it wouldn't evaluate up to y(1) = pi.