2 isrel - whether two values are relatively prime
14 Determine if x and y are relatively prime. If gcd(x,y) == 1, then
15 return 1, otherwise return 0.
18 > print isrel(6, 5), isrel(5, 6), isrel(-5, 6)
21 > print isrel(6, 2), isrel(2, 6), isrel(-2, 6)
28 BOOL zrelprime(ZVALUE x, y)
32 isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
33 ishash, isident, isint, islist, ismat, ismult, isnull, isnum, isobj,
34 isobjtype, isodd, isprime, isrand, israndom, isreal,
35 issimple, issq, isstr, istype