[ruby-dev:40347] Re: patch for ruby-core:17472

=1B$BB<ED$G$9!#=1B(B

On 2010/02/07, at 22:04, TOYOFUKU Chikanobu wrote:

>  =1B$BK-J!$G$9!#=1B(B
>=20
>> - =1B$B=3D|?t=1B(B > 0 =1B$B"M=1B(B 0 <=3D =1B$B>jM>=1B(B < =
=1B$B=3D|?t=1B(B
>=20
>  =1B$B;d$b$3$NA0=1B(B mod =1B$B$K!V>jM>=1B(B < =
=1B$B=3D|?t!W$r4|BT$9$k$H=3Dq$-$^$7$?$,2~$a$F=1B(B
> =1B$B9M$($?$i!"Nc$($P=1B(B
> (=1B$BM-8z7e?t#17e$G#12/=1B(B).mod(=1B$B!JM-8z7e?t$$$/$D$G$"$m$&$,!K=1B(=
B3)
> =1B$B$K$O0UL#$N$"$kCM$H$7$F2?$r4|BT$9$Y$-$G$7$g$&$+!#=1B(B
> x =3D BigDecimal("1E8"); sin(x,100) =1B$B$O=1B(B =
sin(=1B$B@53N$J#12/=1B(B,100) =1B$B$H$7$F=1B(B
> =1B$B7W;;$9$k$Y$-$G$7$g$&$+!#$=3D$l$H$b=1B(B x =
=1B$B$O5a$a$kM-8z7e?t$N=1B(B sin =1B$B$N7W;;=1B(B
> =1B$B$K$OM-8z7e?t$,B-$j$J$$$N$GNc30$K$9$k$Y$-$G$7$g$&$+!#=1B(B

=1B$B0l4S@-$r;}$?$;$?$$$H$3$m$G$9!#=1B(B

>  =1B$B$H$b$+$/=1B(B BigDecimal =1B$B$N=1B(B mod, divMod =
=1B$B$K4X$7$F$O$^$:0UL#$r7h$a$k=1B(B
> =1B$B$Y$-$@$H;W$$$^$9!#=1B(BInt, Float =1B$B$J$I$H$N0l4S@-$r9M$($k$H=1B(=
B mod, divMod
> =1B$B$H$$$&%a%=3D%C%I$ODj5A$9$Y$-$G$J$$$N$+$b$7$l$^$;$s!#=1B(B

1.9 =1B$B$K$O=1B(B Integer=1B$B!"=1B(BRational =
=1B$B$H$$$&Fs$D$N@53N$J?t$,AH$_9~$_$GMQ0U$5$l$F$$$^$9!#=1B(B
=1B$B@53N$J?t$NI=3D8=3D$O$3$l$i$K>y$C$F!"$9$Y$F$N=1B(B BigDecimal =
=1B$B$OM-8B$N@:EY$r;}$D=1B(B
=1B$B$3$H$K$7$F$7$^$C$FLdBj$O$"$k$G$7$g$&$+!)=1B(B

=1B$B$b$7LdBj$,$J$$$h$&$J$i!">e5-$NNcBj$O=1B(B Mathematica =
=1B$B$HF1$8$K$7$?$$$G$9!#=1B(B
Mathematica =1B$B$G$O<!$N$h$&$K$J$j$^$9!#=1B(B

  In[1]:=3D N[Sin[N[100000000, 1]], 100]
 =20
  Out[1]=3D 0.
 =20
  In[2]:=3D Mod[N[100000000, 1], 3]
 =20
  Out[2]=3D 0.*10^7

--
Kenta Murata
OpenPGP FP =3D FA26 35D7 4F98 3498 0810 E0D5 F213 966F E9EB 0BCC

=1B$BK\$r=3Dq$-$^$7$?=1B(B!!
=1B$B!X=1B(BRuby =1B$B5U0z$-%l%7%T!Y=1B(B =
http://www.amazon.co.jp/dp/4798119881/mrkn-22

E-mail: [e-mail]
twitter: http://twitter.com/mrkn/
blog: http://d.hatena.ne.jp/mrkn/