Recent content by mango84

Hey everyone, I'm currently in a physics I class and I think one of the guys in my class has a fancy program in his calculator to calculate his work for him. He's a computer engineering student (still in pre-engineering) and always makes 100's on his multiple choice tests, but he doesn't...

Find a power series solution for each of the initial value problems below: (a) y' (x) = cos x^2, y(0) = 0 (b) y'' - xy=0, y(0)=1, y' (0) = 0 Does anybody have any advice for this? Thanks!

Dirac Delta Function: If, at time t =a, the upper end of an undamped spring-mass system is jerked upward suddenly and returned to its original position, the equation that models the situation is mx'' + kx = kH delta(t-a); x(0) = x(sub zero), x'(0) = x(sub 1), where m is the mass, k is the...