section g of routines in gcd.i

functions in gcd.i - g

gcd


    gcd(a,b)  


returns the GCD (greatest common divisor) of A and B, which must  
be one of the integer data types.  A and B may be conformable  
arrays; the semantics of the gcd call are the same as any other  
binary operation.  Uses Euclid's celebrated algorithm.  
The absolute values of A and B are taken before the operation  
commences; if either A or B is 0, the return value will be 0.  
Interpreted function, defined at i/gcd.i   line 10