Hi,
when I type
Plot3D[{-0.005553135*sin[15.708 x]*sin[7.85398 y]}, {x, 0, 0.2}, {y, 0, 0.4}]
in Mathematica, it only plot's an empty cube. In WolframAlpha it works fine. Does anybody know what the problem is?
Thank you very much!
Thanks, that solved the problem!!!!!
Mathematica built in functions are capitalized, so sin should be Sin.
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