Function: type/real - check for a real value
Calling Sequence:
type(n, real);
Parameters:
n - any expression
Description:
The call type(n, real) checks to see if n is real; if so, it returns true, otherwise it returns false.
An expression is of type real if it is of type realcons but not the constant 'infinity'.
This type is part of the math package and automatically initialized when this package is loaded.
Examples:
> with(math):
> type(1, real);
> type(ln(2), real);
> type(infinity, realcons);
> type(infinity, real);
> type(ln(-2), real);
See Also:
type , type/irrational , type/cmplx .
Version History:
Version 1.0 - 1997
Version 2.0 - January 06, 1999