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Hey Bill, I am having some trouble still. Sorry for the delay. r = 0;(*defines the critical radius variable*) For[i = 1.49999, i .006]; If[x[t] /. s /. t -> .006
I looked at the reference material here: http://reference.wolfram.com/mathematica/ref/message/NDSolve/ndnum.html I still cannot figure out what the problem is - only thing I can think of is that I didn't assign a specific value to "t" but it is a...