NAME
    version - return the calc version string

SYNOPSIS
    version()

TYPES
    return	string

DESCRIPTION
    Returns the calc version string.

    Calc version strings can be of the form:

    	x.y.z.w
    	x.y.z
    	x.y

    where x, y, z, w, v are integers (without leading 0's) and,
    t is the the liternal character 't'.

EXAMPLE
    > version()
    	    "2.11.5.4"

LIMITS
    none

LINK LIBRARY
    none

SEE ALSO
    n/a