link hexcvt
June 7, 1994; Robert J. Alexander
This file is in the public domain.
hex(s) -- Converts string of hex digits into an integer. hexstring(i,n,lc) -- Returns a string that is the hexadecimal representation of the argument. If n is supplied, a minimum of n digits appear in the result; otherwise there is no minimum, and negative values are indicated by a minus sign. If lc is non-null, lowercase characters are used instead of uppercase.