error using ==> times

Question

0 个投票

what does it mean that error below. can anyone explain to me. i can not understand the error. thanks

 ??? Error using ==> times
 Integers can only be combined with
 integers of the same class, or
 scalar doubles.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

Answer 1

James Tursa 2012-5-3

1 个投票

You can do this:

m = int32(1:3);
n = m .* 2; % integer class times scalar double

You can't do this:

m = int32(1:3);
n = m .* [4:6]; % integer class times same size double

So if you need to do the latter, you can do it like this:

m = int32(1:3);
n = m .* int32([4:6]); % integer class times same size same class

Answer 2

Junaid 2012-5-3

1 个投票

I think whatever vector you are trying to multiplying should have same class (data types). So first you type cast to one class.

like

x = double(x);

mohd 2012-5-3

what is that error and how to solve it

Junaid 2012-5-4

If your matrix dimension doesn't satisfy the condition of multiplication then you can't multiply them. You have check the Dimenions.