[ruby-list:48064] Re: 小数点つき時刻情報とTime#parse

=1B$B@>C+!w4X3X!&M}9)!&>pJs2J3X$G$9!%=1B(B
=1B$B;d$O!$=1B(BC=1B$BIw$K=1B(B
printf("%10.6f\n",Time.parse(a).to_f-Time.parse(b).to_f)
=1B$B$H$7$F$$$^$9!%=1B(B

On 2011/05/09, at 10:44, Shota Fukumori (sora_h) wrote:

> sora_h=1B$B$G$9!#=1B(B
>=20
> 2011/5/9 Mitsuo KASAHARA <[e-mail]>:
>> =
=1B$B$H!">.?tE@0J2<=1B(B6=1B$B7e$N>pJs$r;}$D;~9o>pJs$N:9J,$r7W;;$7$?$i!"2?=
8N$+=1B(B
>> =1B$B0l$DL\$NJ}$G$O=1B(B
>> 0.00629800000000004
>> =1B$B$H=1B(B
>> 00000000004
>> =1B$B$,M>7W$K$/$C$D$$$F=3DPNO$5$l$^$7$?!#=1B(B
>=20
> =1B$BIbF0>.?tE@?t$N;EMM$G8m:9$,@8$8$F$7$^$$$^$9!#=1B(B
> =1B$B;29M=1B(B:
> * =
http://download.oracle.com/docs/cd/E19957-01/806-4847/ncg_goldberg.html
> * =
http://wiki.github.com/rdp/ruby_tutorials_core/ruby-talk-faq#floats_imprec=
ise
> * http://en.wikipedia.org/wiki/Floating_point#Accuracy_problems
>=20
>> =
=1B$B%Q%?!<%s$r%$%m%$%m;n$7$?$o$1$G$O$J$$$N$G$9$,!"$H$"$k%m%0$N;~9o>pJs$N:=
9J,$r=1B(B
>> =
=1B$BBgNL$K7W;;$7$F$$$?$H$3$m=1B(Bto_f=1B$B$r$7$J$+$C$?$H$-$K=1B(B390=1B$B=
8DCf=1B(B1=1B$B8D$@$1=1B(B
>> =1B$B>e5-$N$h$&$KM>7W$J7e$,=3DPNO$5$l$^$7$?!#=1B(B
>>=20
>> =
=1B$B2?$,0-$$$N$+$h$/J,$+$i$J$$$N$G$9$,!">.?tE@0J2<=1B(B6=1B$B7e$N0z$-;;$J=
$N$G!"=1B(B
>> =
=1B$B$=3D$N$^$^>.?tE@0J2<=1B(B6=1B$B7e!J0JFb!K$NEz$($,M_$7$$$N$G$9$,!"$I$N=
$h$&$K$7$?$iNI$$$+=1B(B
>> =1B$B$4=3Du8@$$$?$@$1$^$;$s$G$7$g$&$+!#=1B(B
>=20
> =1B$B8m:9$,L5$$$N$rK>$s$G$$$k$N$J$i!"=1B(B BigDecimal (=1B$BI8=3D`E:IU=1B=
(B) =1B$B$N;HMQ$r$*$9$9$a$7$^$9!#=1B(B
> =
=1B$B$7$+$7!"=1B(BTime=1B$B$+$i=1B(BFloat=1B$B$KJQ49$9$k$H$-$K$9$G$K8m:9$,=
@8$8$k$J$I$G8m:9L5$7$O87$7$$$H;W$$$^$9!#=1B(B
>=20
>=20
> --=20
> Shota Fukumori a.k.a. @sora_h - http://codnote.net/
>=20