3882件ヒット
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種類
ライブラリ
- ビルトイン (225)
- base64 (72)
- bigdecimal (12)
-
cgi
/ html (12) - digest (180)
- etc (1560)
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net
/ ftp (144) -
net
/ imap (24) - nkf (24)
- open-uri (12)
- openssl (60)
- pathname (64)
- rss (1020)
- securerandom (36)
- shell (6)
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shell
/ command-processor (6) -
shell
/ filter (6) - tempfile (60)
-
win32
/ registry (204)
クラス
- Array (21)
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Digest
:: Base (168) - Dir (24)
- File (36)
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Net
:: FTP (144) -
Net
:: IMAP (24) -
OpenSSL
:: BN (48) -
OpenSSL
:: SSL :: SSLContext (12) - Pathname (64)
-
RSS
:: Maker :: ChannelBase (408) -
RSS
:: Maker :: ChannelBase :: CategoriesBase (12) -
RSS
:: Maker :: ChannelBase :: CategoriesBase :: CategoryBase (48) -
RSS
:: Maker :: ChannelBase :: SkipDaysBase (12) -
RSS
:: Maker :: ChannelBase :: SkipDaysBase :: DayBase (24) -
RSS
:: Maker :: ChannelBase :: SkipHoursBase (12) -
RSS
:: Maker :: ChannelBase :: SkipHoursBase :: HourBase (24) -
RSS
:: Maker :: ImageBase (24) -
RSS
:: Maker :: ItemsBase (12) -
RSS
:: Maker :: ItemsBase :: ItemBase (84) -
RSS
:: Maker :: RSSBase (108) -
RSS
:: Maker :: TextinputBase (96) -
RubyVM
:: InstructionSequence (24) - Shell (6)
-
Shell
:: CommandProcessor (6) -
Shell
:: Filter (6) - String (24)
- Tempfile (60)
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Thread
:: Backtrace :: Location (24) -
Win32
:: Registry (192)
モジュール
- Base64 (72)
-
CGI
:: HtmlExtension (12) - Digest (12)
- Etc (1560)
- Kernel (12)
- NKF (12)
-
OpenURI
:: Meta (12) -
RSS
:: BaseTrackBackModel (24) -
RSS
:: SyndicationModel (24) - SecureRandom (24)
キーワード
- CategoriesBase (12)
- CategoryBase (12)
- ChannelBase (12)
- Constants (12)
- DayBase (12)
- EnclosureBase (12)
-
HKEY
_ CLASSES _ ROOT (12) -
HKEY
_ CURRENT _ CONFIG (12) -
HKEY
_ CURRENT _ USER (12) -
HKEY
_ DYN _ DATA (12) -
HKEY
_ LOCAL _ MACHINE (12) -
HKEY
_ PERFORMANCE _ DATA (12) -
HKEY
_ PERFORMANCE _ NLSTEXT (12) -
HKEY
_ PERFORMANCE _ TEXT (12) -
HKEY
_ USERS (12) - HourBase (12)
- Integer (12)
-
NEWS for Ruby 2
. 0 . 0 (12) -
NEWS for Ruby 2
. 3 . 0 (10) -
NEWS for Ruby 2
. 5 . 0 (8) -
NEWS for Ruby 2
. 7 . 0 (6) -
NEWS for Ruby 3
. 0 . 0 (5) -
NEWS for Ruby 3
. 1 . 0 (4) - NKF (12)
-
SC
_ 2 _ CHAR _ TERM (12) -
SC
_ 2 _ C _ BIND (12) -
SC
_ 2 _ C _ DEV (12) -
SC
_ 2 _ FORT _ DEV (12) -
SC
_ 2 _ FORT _ RUN (12) -
SC
_ 2 _ LOCALEDEF (12) -
SC
_ 2 _ PBS (12) -
SC
_ 2 _ PBS _ ACCOUNTING (12) -
SC
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SC
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SC
_ 2 _ PBS _ MESSAGE (12) -
SC
_ 2 _ PBS _ TRACK (12) -
SC
_ 2 _ SW _ DEV (12) -
SC
_ 2 _ UPE (12) -
SC
_ 2 _ VERSION (12) -
SC
_ ADVISORY _ INFO (12) -
SC
_ AIO _ LISTIO _ MAX (12) -
SC
_ AIO _ MAX (12) -
SC
_ AIO _ PRIO _ DELTA _ MAX (12) -
SC
_ ARG _ MAX (12) -
SC
_ ASYNCHRONOUS _ IO (12) -
SC
_ ATEXIT _ MAX (12) -
SC
_ AVPHYS _ PAGES (12) -
SC
_ BARRIERS (12) -
SC
_ BC _ BASE _ MAX (12) -
SC
_ BC _ DIM _ MAX (12) -
SC
_ BC _ SCALE _ MAX (12) -
SC
_ BC _ STRING _ MAX (12) -
SC
_ CHILD _ MAX (12) -
SC
_ CLK _ TCK (12) -
SC
_ CLOCK _ SELECTION (12) -
SC
_ COLL _ WEIGHTS _ MAX (12) -
SC
_ CPUSET _ SIZE (12) -
SC
_ CPUTIME (12) -
SC
_ DELAYTIMER _ MAX (12) -
SC
_ EXPR _ NEST _ MAX (12) -
SC
_ FSYNC (12) -
SC
_ GETGR _ R _ SIZE _ MAX (12) -
SC
_ GETPW _ R _ SIZE _ MAX (12) -
SC
_ HOST _ NAME _ MAX (12) -
SC
_ IOV _ MAX (12) -
SC
_ IPV6 (12) -
SC
_ JOB _ CONTROL (12) -
SC
_ LINE _ MAX (12) -
SC
_ LOGIN _ NAME _ MAX (12) -
SC
_ MAPPED _ FILES (12) -
SC
_ MEMLOCK (12) -
SC
_ MEMLOCK _ RANGE (12) -
SC
_ MEMORY _ PROTECTION (12) -
SC
_ MESSAGE _ PASSING (12) -
SC
_ MONOTONIC _ CLOCK (12) -
SC
_ MQ _ OPEN _ MAX (12) -
SC
_ MQ _ PRIO _ MAX (12) -
SC
_ NGROUPS _ MAX (12) -
SC
_ NPROCESSORS _ CONF (12) -
SC
_ NPROCESSORS _ ONLN (12) -
SC
_ OPEN _ MAX (12) -
SC
_ PAGESIZE (12) -
SC
_ PAGE _ SIZE (12) -
SC
_ PHYS _ PAGES (12) -
SC
_ PRIORITIZED _ IO (12) -
SC
_ PRIORITY _ SCHEDULING (12) -
SC
_ RAW _ SOCKETS (12) -
SC
_ READER _ WRITER _ LOCKS (12) -
SC
_ REALTIME _ SIGNALS (12) -
SC
_ REGEXP (12) -
SC
_ RE _ DUP _ MAX (12) -
SC
_ RTSIG _ MAX (12) -
SC
_ SAVED _ IDS (12) -
SC
_ SEMAPHORES (12) -
SC
_ SEM _ NSEMS _ MAX (12) -
SC
_ SEM _ VALUE _ MAX (12) -
SC
_ SHARED _ MEMORY _ OBJECTS (12) -
SC
_ SHELL (12) -
SC
_ SIGQUEUE _ MAX (12) -
SC
_ SPAWN (12) -
SC
_ SPIN _ LOCKS (12) -
SC
_ SPORADIC _ SERVER (12) -
SC
_ SS _ REPL _ MAX (12) -
SC
_ STREAM _ MAX (12) -
SC
_ SYMLOOP _ MAX (12) -
SC
_ SYNCHRONIZED _ IO (12) -
SC
_ THREADS (12) -
SC
_ THREAD _ ATTR _ STACKADDR (12) -
SC
_ THREAD _ ATTR _ STACKSIZE (12) -
SC
_ THREAD _ CPUTIME (12) -
SC
_ THREAD _ DESTRUCTOR _ ITERATIONS (12) -
SC
_ THREAD _ KEYS _ MAX (12) -
SC
_ THREAD _ PRIORITY _ SCHEDULING (12) -
SC
_ THREAD _ PRIO _ INHERIT (12) -
SC
_ THREAD _ PRIO _ PROTECT (12) -
SC
_ THREAD _ PROCESS _ SHARED (12) -
SC
_ THREAD _ ROBUST _ PRIO _ INHERIT (12) -
SC
_ THREAD _ ROBUST _ PRIO _ PROTECT (12) -
SC
_ THREAD _ SAFE _ FUNCTIONS (12) -
SC
_ THREAD _ SPORADIC _ SERVER (12) -
SC
_ THREAD _ STACK _ MIN (12) -
SC
_ THREAD _ THREADS _ MAX (12) -
SC
_ TIMEOUTS (12) -
SC
_ TIMERS (12) -
SC
_ TIMER _ MAX (12) -
SC
_ TRACE (12) -
SC
_ TRACE _ EVENT _ FILTER (12) -
SC
_ TRACE _ EVENT _ NAME _ MAX (12) -
SC
_ TRACE _ INHERIT (12) -
SC
_ TRACE _ LOG (12) -
SC
_ TRACE _ NAME _ MAX (12) -
SC
_ TRACE _ SYS _ MAX (12) -
SC
_ TRACE _ USER _ EVENT _ MAX (12) -
SC
_ TTY _ NAME _ MAX (12) -
SC
_ TYPED _ MEMORY _ OBJECTS (12) -
SC
_ TZNAME _ MAX (12) -
SC
_ V6 _ ILP32 _ OFF32 (12) -
SC
_ V6 _ ILP32 _ OFFBIG (12) -
SC
_ V6 _ LP64 _ OFF64 (12) -
SC
_ V6 _ LPBIG _ OFFBIG (12) -
SC
_ V7 _ ILP32 _ OFF32 (12) -
SC
_ V7 _ ILP32 _ OFFBIG (12) -
SC
_ V7 _ LP64 _ OFF64 (12) -
SC
_ V7 _ LPBIG _ OFFBIG (12) -
SC
_ VERSION (12) -
SC
_ XOPEN _ CRYPT (12) -
SC
_ XOPEN _ ENH _ I18N (12) -
SC
_ XOPEN _ REALTIME (12) -
SC
_ XOPEN _ REALTIME _ THREADS (12) -
SC
_ XOPEN _ SHM (12) -
SC
_ XOPEN _ STREAMS (12) -
SC
_ XOPEN _ UNIX (12) -
SC
_ XOPEN _ UUCP (12) -
SC
_ XOPEN _ VERSION (12) - SecureRandom (12)
- SkipDaysBase (12)
- SkipHoursBase (12)
- TextinputBase (12)
- [] (8)
- about (12)
- about= (12)
- base (12)
- base64 (24)
-
base
_ label (24) -
base
_ uri (12) - basename (42)
- bigdecimal (12)
-
block
_ length (12) -
ca
_ file= (12) - categories (12)
- channel (12)
- clone (12)
- cloud (12)
- comments (12)
- comments= (12)
- content (36)
- content= (36)
- copyright (12)
- copyright= (12)
- create (24)
- date (12)
- date= (12)
- decode64 (12)
- description (48)
- description= (48)
- digest (24)
- digest! (12)
-
digest
_ length (12) - digits (24)
- docs (12)
- docs= (12)
- domain (12)
- domain= (12)
- dup (12)
- enclosure (12)
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- encoding (12)
- encoding= (12)
-
exec
_ under (12) - generator (12)
- generator= (12)
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- info (12)
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- label (24)
- language (12)
- language= (12)
- lastBuildDate (12)
- lastBuildDate= (12)
- length (12)
- link (36)
- link= (36)
- managingEditor (12)
- managingEditor= (12)
- manual page (12)
- name (12)
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- new (84)
-
new
_ category (12) -
new
_ day (12) -
new
_ hour (12) -
new
_ item (12) - nkf (12)
- open (48)
- open-uri (12)
- pack (21)
- pack テンプレート文字列 (12)
- pubDate (12)
- pubDate= (12)
- put (24)
- putbinaryfile (24)
- puttextfile (24)
-
rb
_ big2str0 (1) -
rdoc
/ generator / json _ index (12) - realdirpath (24)
- realpath (24)
-
relative
_ path _ from (12) -
rss
_ version (12) -
ruby 1
. 9 feature (12) -
rubygems
/ commands / generate _ index _ command (12) - size (12)
- skipDays (12)
- skipHours (12)
- sort (12)
- standalone (12)
- standalone= (12)
-
strict
_ decode64 (12) -
strict
_ encode64 (12) -
sy
_ updateBase (12) -
sy
_ updateBase= (12) -
test
/ unit (1) - textinput (12)
- title (24)
- title= (24)
-
to
_ i (12) -
to
_ s (42) -
trackback
_ ping (12) -
trackback
_ ping= (12) - ttl (12)
- ttl= (12)
-
uid
_ sort (12) - unpack (12)
-
urlsafe
_ base64 (12) -
urlsafe
_ decode64 (12) -
urlsafe
_ encode64 (12) - version (12)
- version= (12)
- webMaster (12)
- webMaster= (12)
- wtime2time (12)
検索結果
先頭5件
-
Etc
:: SC _ V6 _ LP64 _ OFF64 -> Integer (102.0) -
Etc.#sysconf の引数に指定します。
...Etc.#sysconf の引数に指定します。
詳細は sysconf(3) を参照してください。... -
Etc
:: SC _ V6 _ LPBIG _ OFFBIG -> Integer (102.0) -
Etc.#sysconf の引数に指定します。
...Etc.#sysconf の引数に指定します。
詳細は sysconf(3) を参照してください。... -
Etc
:: SC _ V7 _ ILP32 _ OFF32 -> Integer (102.0) -
Etc.#sysconf の引数に指定します。
...Etc.#sysconf の引数に指定します。
詳細は sysconf(3) を参照してください。... -
Etc
:: SC _ V7 _ ILP32 _ OFFBIG -> Integer (102.0) -
Etc.#sysconf の引数に指定します。
...Etc.#sysconf の引数に指定します。
詳細は sysconf(3) を参照してください。... -
Etc
:: SC _ V7 _ LP64 _ OFF64 -> Integer (102.0) -
Etc.#sysconf の引数に指定します。
...Etc.#sysconf の引数に指定します。
詳細は sysconf(3) を参照してください。... -
Etc
:: SC _ V7 _ LPBIG _ OFFBIG -> Integer (102.0) -
Etc.#sysconf の引数に指定します。
...Etc.#sysconf の引数に指定します。
詳細は sysconf(3) を参照してください。... -
bigdecimal (78.0)
-
bigdecimal は浮動小数点数演算ライブラリです。 任意の精度で 10 進表現された浮動小数点数を扱えます。
...点数を扱えます。
//emlist[][ruby]{
require 'bigdecimal'
a = BigDecimal("0.123456789123456789")
b = BigDecimal("123456.78912345678", 40)
print a + b # => 0.123456912580245903456789e6
//}
一般的な 10 進数の計算でも有用です。2 進数の浮動小数点演算には微小な誤......[ruby]{
sum = 0
for i in (1..10000)
sum = sum + 0.0001
end
print sum # => 0.9999999999999062
//}
//emlist[例2: 0.0001 を 10000 回足す場合。(BigDecimal)][ruby]{
require 'bigdecimal'
sum = BigDecimal("0")
for i in (1..10000)
sum = sum + BigDecimal("0.0001")
end
print sum # => 0.1e1
//}......仮数部は unsigned long の配列 (以下の構造体要素 frac) で管理されます。
概念的には、以下のようになります。
<浮動小数点数> = 0.xxxxxxxxx * BASE ** n
ここで、x は仮数部を表す数字、BASE は基数 (10 進表現なら 10)、
n は指数部を...