Download quadgui.m and polyinterp.m . Both of these programs were written by Cleve Moler. Test "quadgui", which (when used without any arguments) integrates a function called "humps". Use quadgui to estimate these integrals to a tolerance of 1.e-6: Integral from 0 to 2 pi of cos(x). Integral from 0 to 1 of humps. Integral from .01 to 1 of 1/x. Integral from 0 to pi of tan(sin(x))-sin(tan(x)). Integral from 0 to 1 of sqrt(x). Hand in a table giving the number of function evaluations used in each case. a discussion of why some integrals were harder than others.