how to convert array to vector

Hi, I have a set of M and theta correspondance data. The thera range from 0 to 0.12 radian. Because I want to proof below eqaution, so I want to plug the theta in to get the new M by this eqaution.

Here is my code:

But I don't know why the result of M become 13x13 table shown as below. I am not sure it is array or not. How can I convert M result to become like theta table?

Answer 1

[David Hill]

theta=0:.01:.12;%row vector
M=71420*theta./((1+(theta*71420/94.42).^.5).^.2);%row vector

[Kiki Chung]

Thank you! That is what I want.

[Kiki Chung]

Hi, if the equation is M = 94.42*tanh(theta*71420/94.42)

Then should I add " .* " instead of " * "? Should I input the equation as :

theta = 0:0.01:0.12

M = 94.42.*tanh(theta.*71420/94.42)

[David Hill]

You do not need '.' when multiplying by a scalar

[Kiki Chung]

thank you so much