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plotting complex exponential function

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EDEN
EDEN 2020-11-29
评论： EDEN 2020-11-29
Hi friends,
I am tring to plot the graph of
y = (1*e^-i20*pi * t) + (4*e^i20*pi *t ) where t= 5:-0.1:0
can you please help me in this case.
thank you.

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采纳的回答

VBBV
VBBV 2020-11-29
t = 5:-0.1:0 ;
y = 1*exp(-i*20*pi * t) + (4*exp(i*20*pi *t ) );
plot(t,real(y))
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VBBV
VBBV 2020-11-29
编辑：VBBV 2020-11-29
t = 5:-0.01:0 ;
%for i = 1:length(t)
y = 1*exp(-i*0.2*pi.*t) + (0.44*exp(i*0.2*pi.*t ) );
plot(t,real(y),'linewidth',2)
Here's what i get
EDEN
EDEN 2020-11-29
Thank you so much brother, i do really appreciate.

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更多回答（1 个）

James Tursa
James Tursa 2020-11-29
编辑：James Tursa 2020-11-29
E.g., maybe this is what you need
y = 1*exp( -i20 *pi * t ) + 4*exp( i20 * pi * t );
plot(t,y);
Although it is not clear what i20 is. A variable name? Or is this supposed to be i*20? In which case you might want to plot real(y) instead of y.

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