Error using * in a simple matlab program

>> format short e
C=1;
O=0;
y=3;
m=1;
w=50;
t=0:1:10;
f=C.*exp(-(y.*t)/(2.*m))*cos(w.*t+O);
disp([t,f])
Error using *
Inner matrix dimensions must agree.

2 个评论

y=log(abs(x))*(x*cos(x)+log(abs(x)))
Error using *
Incorrect dimensions for matrix multiplication. Check that the number of columns in the first matrix matches the number of rows in the second matrix. To perform elementwise multiplication, use '.*

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 采纳的回答

Birdman
Birdman 2018-1-18
编辑:Birdman 2018-1-18
C=1;
O=0;
y=3;
m=1;
w=50;
t=0:1:10;
f=C.*exp(-(y.*t)./(2.*m)).*cos(w.*t+O);
Be careful that you should be doing element-wise multiplication while multipyling the exp term with cos term.

2 个评论

thank you! its worked now!
Can u show is the example of this equation because I'm having the same error.

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