utrunc, udecomp, ureverse
- utrunc(p,d)
- udecomp(p,d)
- ureverse(p)
- :: ¿¹à¼°¤ËÂФ¹¤ëÁàºî
- return
- °ìÊÑ¿ô¿¹à¼°¤¢¤ë¤¤¤Ï°ìÊÑ¿ô¿¹à¼°¤Î¥ê¥¹¥È
- p
- °ìÊÑ¿ô¿¹à¼°
- d
- ÈóÉéÀ°¿ô
-
p ¤ÎÊÑ¿ô¤ò x ¤È¤¹¤ë. ¤³¤Î¤È¤ p = p1+x^(d+1)p2
(p1 ¤Î¼¡¿ô¤Ï d °Ê²¼) ¤Èʬ²ò¤Ç¤¤ë.
utrunc()¤Ï p1 ¤òÊÖ¤·,udecomp()¤Ï [p1,p2] ¤òÊÖ¤¹. -
p ¤Î¼¡¿ô¤ò e ¤È¤·, i ¼¡¤Î·¸¿ô¤ò p[i] ¤È¤¹¤ì¤Ð,
ureverse()¤Ï p[e]+p[e-1]x+... ¤òÊÖ¤¹.
[132] utrunc((x+1)^10,5); 252*x^5+210*x^4+120*x^3+45*x^2+10*x+1 [133] udecomp((x+1)^10,5); [252*x^5+210*x^4+120*x^3+45*x^2+10*x+1,x^4+10*x^3+45*x^2+120*x+210] [134] ureverse(3*x^3+x^2+2*x); 2*x^2+x+3
- »²¾È
-
section
udiv,urem,urembymul,urembymul_precomp,ugcd.
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