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Showing error Matrix dimensions must agree

Asked by Mihir Kaswan on 21 Sep 2019
Latest activity Answered by the cyclist
on 21 Sep 2019
r=[0 : 100 :100];
theta =[0 : 2*pi :100];
z=2*(r-4*sin(theta)./r);
Matrix dimensions must agree.

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2 Answers

Answer by madhan ravi
on 21 Sep 2019

theta =0:2*pi:100;
r=linspace(0,100,numel(theta)); % theta and r should have same length/ or either one be a scalar
z=2*(r-4*sin(theta)./r);
doc linspace
doc numel

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Answer by the cyclist
on 21 Sep 2019

The variable r has just two elements: [0 100].
theta has 16 elements: [0 6.2832 12.5664 18.8496 ...]
What do you expect to happen when you try to divide a vector with 16 elements by one with 2 elements?

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