Trying to plot complex function for varying value of t
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My function is given by exp(i*t) and I want to plot the function for varying values of t. The function should show that it curves closer and closer to the imaginary axis as t increase from 0 to pi how would I show this and graph each increment on a graph? I have put an image using Desmos to show what I want matlab to graph.
![](/matlabcentral/answers/uploaded_files/1644151/IMG_4886.png)
5 件のコメント
dpb
2024 年 3 月 17 日
You're going to have to show us how you did what you did in Desmos; it doesn't look like what you describe to me.
clear all
t=linspace(0,pi); % vary t from 0 to pi
plot(exp(i*t)) % plot the function against t
ylim(xlim) % put on even range
axis square % and the same footing in space
回答 (1 件)
Binaya
2024 年 3 月 20 日
Hi Keaton
By Euler's formula, use of the expression "exp(i*t)" results in the expression "cos(t)+i*sin(t)". From this expression, it can be concluded that the maximum value of the expression can be 1 in either real axis or imaginary axis.
When you try to plot this "exp(i*t)", where t ranges from 0 to pi, you get a half circle as shown below:
t=0:0.01:pi;
y=exp(i*t);
plot(y);axis equal;
The plot generated by desmos does not seem to take into account the "i" or imaginary number when calculating the plot of the exponential which leads to the a plot of exponential function with real inputs.
1 件のコメント
Walter Roberson
2024 年 3 月 20 日
As a special case, if you plot() a single variable and the variable is complex-valued, then it plots imaginary component of the value versus real component of the value.
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