having thought about it this is the only thing i can think of:
int_{x_0}^{x_0+2h} -----> int_{x_0 -x_0}^{x_0+2h-x_0}
so, thats saying that the integral doesnt lose any generality by subtracting x_0 (a constant) from both the upper and lower limits (i dont know for certain i can do this...
Thanks for the reply.
Could you tell me that if the integral is from x_0 to x_0 + 2h then can i set x_0 = 0 and it still be a proof (it's a lot simplier if i do)? or have i lost generality?
Thanks again!
Simpson's rule can solve cubics exactly...(as well as quadratics which makes sense) the question is why? ive googled around and cant find an explanation, although it is just stated as being true.
Can someone offer and explanation or a website?
Thanks