Define function in M file

Hello Everyone.I want to define two functions in an M file including M and M1. Here is the code. In the end I want to calculate the integration of function M1 from 0 to L. But there is something wrong. Thanks for ur help to beginners like me.

FT=1;

FS=2;

E=3;

d=4;

I=5;

K=sqrt(FS/E/I);

L=2;

B=-FT/FS*L;

A=FT/FS/K;

X=0:L/100:L;

W=A*sin(K*X)+B*cos(K*X)+FT/FS*(L-X);

FT1=0:FT/100:FT;

W1=FT1.*(X.^2)/6/E/I.*(3*L-X);

plot(X,W,'k:',X,W1,'y-')

M= @(X) (FS*(A*sin(K*X)+B*cos(K*X)+FT/FS*(L-X))+FT*(L-X));

M1= @(X) M^2/2/E/I

V=integral(M1,0,L)

Answer 1

[David Goodmanson]

Hello Yuchi, M is a function that has one argument, so you need to supply it in M1. Also, it appears that with M1 you wish to square each element in the M array and under this assumption,

   M1= @(X) M(X).^2/2/E/I      % with .^

[Yuchi Kang]

Thanks a lot. That's what I want

Answer 2

[sahil suleman]

find the size , transpose, length of a matrix. pls give me the ans.