how to plot euler formula in matlab?
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I want to plot exponential signal that is euler formula exp(i*pi) in MATLAB but output figure is empty and does not shows graph as shown in attached, even i tried plotting simpler version, i mean
exp(i*pi),but still figure was empty
1 个评论
Turlough Hughes
2020-2-18
There is an example of plotting exponentials in the documentation here, see the sub heading Plot Exponential Function. If you're trying to observe a single point on the plot you could also write
plot(y,'or')
采纳的回答
Star Strider
2020-2-18
The plot function plots lines between points. You have only one point, so if you change the plot call to:
y = exp(100*i*pi)
figure
plot(y,'p')
plots a star at (1,0).
4 个评论
ABTJ
2020-2-18
Star Strider
2020-2-18
If you mean the Euler identity 
:
: y = exp(100*i*pi)
y = cos(100*pi)+j*sin(100*pi)
with both producing:
y =
1.0000e+000 + 1.9644e-015i
y =
1.0000e+000 + 1.9644e-015i
That is the best I can do with the information I have.
ABTJ
2020-2-19
Star Strider
2020-2-19
Add a time-varying vector:
t = linspace(0,2);
y = exp(100*i*pi*t)
y = cos(100*pi*t)+j*sin(100*pi*t);
and now the results will go from 0 to 
.
. To see it:
figure
plot(t, real(y), t, imag(y))
grid
The two ‘y’ vectors are the same, so this works for either one of them.
更多回答（1 个）
i = linspace(0,1,100) ;
y = exp(100*i*pi) ;
plot(i,y)
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