Getting a blank graph

2020 6 13
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更新时间：2020 6 13
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My assignment is to graph the output angular velocity of a given universal joint. I have the equation and I am told to graph the function over the interval (0,2pi) or 0 to 360 degrees. I don't know why but my code is giving me a blank graph. Here's my code :
syms theta1 w1
grid on
theta1 = 0:pi/2:2*pi;
w2 = ((cos(pi/6)*(sec(theta1)).^2) / ((tan(theta1)).^2+(cos(pi/6)).^2))*2*pi;
plot(w2,theta1 ), xlabel('input angle'), ylabel('output velocity')

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-6-13
编辑：Ameer Hamza 2020-6-13

0 个投票

grid on
theta1 = 0:pi/2:2*pi;
w2 = ((cos(pi/6)*(sec(theta1)).^2)./((tan(theta1)).^2+(cos(pi/6)).^2))*2*pi;
%^ use elementwise division operator
plot(w2,theta1 ), xlabel('input angle'), ylabel('output velocity')

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