`gcd', `gcdz'
-------------

gcd(POLY1,POLY2)
gcdz(POLY1,POLY2)
     :: POLY1  POLY2  gcd.

RETURN
     
POLY1,POLY2
     

   * ̑̍ő (GCD) ߂. `gcd()' , L̏
     ƂĂ GCD Ԃ. Ȃ킿, ʂ͐W, W 
     GCD 1 ɂȂ悤ȑ, ܂, ݂ɑf̏ꍇ 1 Ԃ. 
     `gcdz()', POLY1, POLY2 ƂɐW̏ꍇ, ̑
     ƂĂ GCD Ԃ. Ȃ킿, `gcd()' ̒l, WŜ̐ GCD
     ̒l|̂Ԃ.
   * Extended Zassenhaus ASY (EZGCD) ɂ.

     [0] gcd(12*(x^2+2*x+1)^2,18*(x^2+(y+1)*x+y)^3);
     x^3+3*x^2+3*x+1
     [0] gcdz(12*(x^2+2*x+1)^2,18*(x^2+(y+1)*x+y)^3);
     6*x^3+18*x^2+18*x+6

Q
     `igcd'

