# Futurebasic/Language/Reference/abs

< Futurebasic | Language | Reference

## AbsEdit

### FunctionEdit

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### SyntaxEdit

positiveValue = abs( expr )

### DescriptionEdit

The `abs`

function returns the absolute value of the numeric expression

.
*expr*

The absolute value of a number is its distance from zero. Thus, the number 3 has an absolute value of 3, while the number -12.34 has an absolute value of 12.34. The absolute value of zero is zero.

### NotesEdit

The standard `abs`

function can accept either an integer or a floating-point

parameter.
*expr*

FB provides also the `usr abs`

routine which originally used to execute faster with 68K applications. This is no longer the case, but the function is still present in the language for backward compatibility.