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 Author Comment/Response elloa 09/28/11 09:47am Hey guys, I'm new in Mathematica. I need to perform a nested loop and use the values of the iterator variables in order to calculate a certain value. Here is the general idea of my code: for c,d = o to 7 [ cost = 0.0 vx = 0.0 for a,b = 0 to 5 vx += ((2*Pi*I*(a*c + b*d))/8) ] cost = vx/48; ] In Mathematica I wrote that as For[c = 0, c <= 7, c++, For[d = 0, d <= 7, d++, vx = 0.0; cost = 0.0; For[a = 0, a <= 5, a++, For[b = 0, b <= 5, b++, vx += ((2*Pi*I)/8)*(a*c + b*d); ] (*b iteration *) ] (* a iteration*) cost = vx/48; Print[cost] ] (* d iteration *) ] (* c iteration *) However, I keep getting the error Set::write: "Tag Times in 0.\ Null is Protected" I don't understand this problem exactly. Can anyone give me a help? What does it means and Why this is happening? URL: ,

 Subject (listing for 'Nested loop error') Author Date Posted Nested loop error elloa 09/28/11 09:47am Re: Nested loop error Forum Modera... 09/28/11 12:13pm Re: Re: Nested loop error elloa 09/28/11 2:14pm
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