Checks if a divides b.
isdivisor = number_isdivisor ( a , b )
a 1x1 matrix of floating point integers, must be positive
a 1x1 matrix of floating point integers, must be positive
a 1x1 matrix of booleans
Returns %t if a | b. Returns %f if not.
number_isdivisor ( 3 , 5 ) // %f number_isdivisor ( 3 , 9 ) // %t
"Introduction to algorithms", Cormen, Leiserson, Rivest, Stein, 2nd edition