Hello. I'm writing a program for class which solves Gauss's Law numerically and plots points. The problem I'm running into is in the integral. Gauss's Law for a sphere can be rearranged into two definite integrals: the integral of sin(theta) from 0 to pi and the integral of 1 from 0 to 2pi. I used trapz for both:
theta = 0:pi/100:pi; polarintegral = sin(theta); phi = 0:pi/100:2*pi; azimuthintegral = 1; polar = trapz(theta, polarintegral); azimuth = trapz(phi, azimuthintegral);
The theta integral works perfectly. Matlab, however, doesn't seem to understand how to integrate 1, since it's not a function of phi. The project instructions says that we're not allowed to solve the integral for the program, even if it's simple. Does anybody have any ideas how I might be able to fix this snag?
By the way, I'm using Matlab 2009b in case that makes a difference. Thank you!
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