`inv'
-----

inv(I,M)
     :: M @Ƃ I ̋t

RETURN
     
I,M
     

   * IA == 1 mod (M) Ȃ鐮 A ߂.
   * I  M ݂͌ɑfłȂ΂ȂȂ, `inv()' ͂̃`FbN͍s
     Ȃ.

     [71] igcd(1234,4321);  
     1
     [72] inv(1234,4321);
     3239
     [73] irem(3239*1234,4321);
     1

Q
     `igcd'

