Error using * in a simple matlab program

8 次查看（过去 30 天）
Libby Goodes
Libby Goodes 2018-1-18
评论： Maxim Gaida 2020-9-25
>> 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
Maxim Gaida
Maxim Gaida 2020-9-25
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 '.*

请先登录，再进行评论。

请先登录，再回答此问题。

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.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by