NAME
MultiplyBy — Make variable become a multiple of itself.
SYNOPSIS
MultiplyBy VarName Value
DESCRIPTION
Return Value
The new value for the variable.
Arguments
VarNameName of variable to multiply.
ValueHow much to multiply by.
More Info
MultiplyBy x 2 is equivalent to x *= 2 in other languages.

For information regarding exceptions / errors, see here.
EXAMPLES 
% set MyVar 2
2
% MultiplyBy MyVar 2
4
% puts $MyVar
4
SEE ALSO
AddTo, DivideBy, SubtractFrom, expr
KEYWORDS
math