Question: @Markiyan Hirnyk  Dear sir i have worked

@Markiyan Hirnyk 

Dear sir i have worked with the command

>plot(log(-1+exp(t)),t=0..2*Pi);

i got plot.

When i replced the argument by complex variable t ->i*θ

i got the same 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

and got a blank plot.

 

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