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 Author Comment/Response jf 02/26/12 7:02pm a) () is for grouping. Function arguments are in square brackets, []. See http://reference.wolfram.com/mathematica/tutorial/TheFourKindsOfBracketingInMathematica.html b) For ordinary input, Mathematica function names begin with capital letters. c) The function "head" or pattern on the left is better with dummy arguments that can stand for any argument. See http://reference.wolfram.com/mathematica/tutorial/DefiningFunctions.html u(x,t) = [sin(4x) + cos(2x)] [cos(t) + sin(t)] brcomes u[x_,t_] = (Sin[4x] + Cos[2x]) (Cos[t] + Sin[t]) URL: ,

 Subject (listing for 'Encountered non-numerical Value, For Heat Eqn') Author Date Posted Encountered non-numerical Value, For Heat Eqn Autobot 02/26/12 08:46am Re: Encountered non-numerical Value, For Heat Eqn jf 02/26/12 7:02pm
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