FUNCTION: Exp2Part - partition from its exponential notation

CALLING SEQUENCE:

Exp2Part(vect)

PART[Exp2Part](vect)

PARAMETERS:

vect = a vector of positive integers

SYNOPSIS:

• The Exp2Part is the inverse function of Part2Exp.

• The exponential notation of a partition is a vector of positive integers that indicates the number of occurrences a part appears in the partition.

• Whenever there is a conflict between the function name Exp2Part and another name used in the same session, use the long form PART['Exp2Part'].

EXAMPLES:

> with(PART):
> Exp2Part([1, 0, 4, 0, 2]);
 
                             [5, 5, 3, 3, 3, 3, 1]
 
> Part2Exp([5, 5, 3, 3, 3, 3, 1]);
 
                                [1, 0, 4, 0, 2]