Thread Subject:

an easy question

I just have a quick and easy problem. I use the function solve in matlab and it return the numerical value that is not yet completely computed such as 5-4*(3210*7), something like that. I kept this value into a variable, says A. Then I have the command
if ( A <=0 )
...
end
and it shows the error about "le".

Do I have to compute A first, and what is the matlab function that can do the job for me.

Thanks in advance.

"Kittithad Wangveerathananon" <kittithad@startfromyou.com> wrote in message <i3rqqs$al7$1@fred.mathworks.com>...
> I just have a quick and easy problem. I use the function solve in matlab and it return the numerical value that is not yet completely computed such as 5-4*(3210*7), something like that. I kept this value into a variable, says A. Then I have the command
> if ( A <=0 )
> ...
> end
> and it shows the error about "le".
>
> Do I have to compute A first, and what is the matlab function that can do the job for me.
>
> Thanks in advance.

Come on now! Help us help you. Why not copy and paste the actual output from solve instead of "something like that?" In addition, why not copy and paste the actual error message? Then we may be able to see what is going on.

Come on now! Help us help you. Why not copy and paste the actual output from solve instead of "something like that?" In addition, why not copy and paste the actual error message? Then we may be able to see what is going on.

Really sorry for your inconvenience Matt.
My question is solved with the function double(). All the information is in the other post. Sorry for wasting space, I don't know how to delete the incomplete post.