FUNCTION: Isx - test whether the argument is an x.i indeterminate

CALLING SEQUENCE:

Isx(expr)

TYP[Isx](expr)

PARAMETERS:

expr = any expression

SYNOPSIS:

• The Isx function tests whether expr is an x.i indeterminate where i denotes an integer.

• Whenever there is a conflict between the function name Isx and another name used in the same session, use the long form TYP['Isx'].

EXAMPLES:

> with(TYP):
> Isx(x3);
 
                                true