how to solve 'Error using | Matrix dimensions must agree. ' ?

2019 11 19
2 个回答
更新时间：2019 11 19
37 次查看（30 天）

0 个投票

how to solve 'Error using | MatrixMatrix, dimensions must agree. ' ? here is my code
clc; clear all;
T=0:0.001:0.07;
size(T);
cm=1.;
lo=-3.545-0.833*log(100*cm)-(9601.-2368.*log(100.*cm))/(T-195.7-32.25*log(100.*cm))
figure();
plot(T, lo, 'DisplayName','T=700000')

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回答（2 个）

KSSV
KSSV 2019-11-19
编辑：KSSV 2019-11-19

0 个投票

clc; clear all;
T=0:0.001:0.07;
size(T);
cm=1.;
lo=-3.545-0.833*log(100*cm)-(9601.-2368.*log(100.*cm))./(T-195.7-32.25*log(100.*cm))
figure();
plot(T, lo, 'DisplayName','T=700000')
Read about MATLAB element by element operations. You are dividing two arrays, you need to divide element by element.
Bhaskar R
Bhaskar R 2019-11-19

0 个投票

You have used mrdivide not normal division here.
correct one is
clc; clear all;
T=0:0.001:0.07;
size(T);
cm=1.;
lo=-3.545-0.833*log(100*cm)-(9601.-2368.*log(100.*cm))./(T-195.7-32.25*log(100.*cm)); % division by element
figure();
plot(T, lo, 'DisplayName','T=700000')

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Bhaskar R
Bhaskar R
2019-11-19

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