Divide by Zero Warning

Hello,

I am trying to generate a warning when matlab divides by zero.

Running the following code:

warning on MATLAB:divideByZero
1/0

still does not generate an error.

I cannot find any official documentation about this feature being phased out, and it doesn't throw an error or anything when I try to turn the warning on. Does anybody have any suggestions as to how to get a warning when you divide by 0?

Thanks in Advance!

Answer 1

[Adam Danz]

At some point matlab got rid of this warning so there's no way to turn it on with recent versions of Matlab.

If you need this warning for a particular function or script, you could write a simple conditional statement that throws a warning when the denominator is equal to zero.

Here's an example.

p = n/d; 

if any(d(:) == 0)
    warning('Divide by zero')
end

Answer 2

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/12677-dividebyzero-warning-does-not-show-up-when-dividing-by-zero#answer_17313

R2009b started phasing it out.

There might not have been documentation that it is now gone completely, but it was gone by R2011a at latest.