The ABS function returns the absolute value of its argument.
Result = ABS(X)
Returns the absolute value of its argument.
The value for which the absolute value is desired. If X is of complex type, ABS returns the magnitude of the complex number:
If X is of complex type, the result is returned as the corresponding floating point type. For all other types, the result has the same type as X. If X is an array, the result has the same structure, with each element containing the absolute value of the corresponding element of X.
ABS applied to any of the unsigned integer types results in the unaltered value of X being returned.
This routine is written to make use of IDL's thread pool, which can increase execution speed on systems with multiple CPUs. The values stored in the
To print the absolute value of -25, enter: