Simple Question: How to Plot a Function over an Interval (Details in Body)

2 次查看（过去 30 天）

Michael Meyne 2023-9-12

回答： Sam Chak 2023-9-12

Hello, it's been too long since I've used Matlab.

Could someone please help me with the following? I tried looking online but other solutions didn't help me for some reason. Thanks in advance!

t = 0:0.01:pi % Theta from 0 to pi

tm = sqrt(44*cos(t).^2 + 44*cos(t)*sin(t)+29*sin(t).^2)

plot(t, tm(t))

Torsten 2023-9-12

编辑：Torsten 2023-9-12

t = 0:0.01:pi; % Theta from 0 to pi

tm = sqrt(44*cos(t).^2 + 44*cos(t).*sin(t)+29*sin(t).^2); % traction magnitude eqn derived on paper

plot(t, tm)

Michael Meyne 2023-9-12

Thank you Torsten!

Sam Chak 2023-9-12

Alternatively, you can also use fplot() to symbolically plot the function

over the specified interval

for t.

syms t

tm = @(t) sqrt(44*cos(t).^2 + 44*cos(t).*sin(t) + 29*sin(t).^2);

fplot(tm, [0 pi])

grid on

title('tm(t) from 0 to \pi')

xlabel('t');

ylabel('tm');

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