Why do I receive an error when using the DEC2HEX function in MATLAB?

If I run the following code:

a = 12.0001;

b = dec2hex(a);

I receive the following error message:

 ??? Error using ==> dec2hex at 27

 First argument must contain non-negative integers.

Answer 1

[MathWorks Support Team]

The DEC2HEX function throws this error if the input arguments are floating point numbers and not integers as expected.

A workaround for this issue would be to use the FIX command to make sure that the number being passed to DEC2HEX is an integer. For example:

dec2hex(fix(arg))

This may also be achieved by type-casting the number appropriately before passing it to DEC2HEX. For example:

dec2hex(int32(temp))