If I run the following code: a = 12.0001; b = dec2hex(a); I receive the following error message: ERROR: ??? Error using ==> dec2hex at 27 First argument must contain non-negative integers.

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

2009 6 27

1 个回答

7 次查看（30 天）

0 个投票

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.

0 个投票

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))

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