Luiz Feijo

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15 years, 291 days

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These are questions asked by Luiz Feijo

Hello I´m trying to plot the fowllowing function using maple without success: f:=t->sum(Dirac(t-k*pi),k=1..20); it seems to be syntax right. Then when I try to plot it using plot (f(t),t=-10..10); I do get an error message: Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct Error, empty plot What is happening?
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