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| author | shigek <shigek@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-04-24 13:32:30 +0000 |
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| committer | shigek <shigek@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-04-24 13:32:30 +0000 |
| commit | 42afa18dad9272dc8bfc96d87c0a8f10d154907c (patch) | |
| tree | 5be89de0864f635d2a12b8424d558220076eb818 | |
| parent | 5fa7cb55b836a598d79ff1c58b26b8a089908e4b (diff) | |
| download | ruby-42afa18dad9272dc8bfc96d87c0a8f10d154907c.tar.gz ruby-42afa18dad9272dc8bfc96d87c0a8f10d154907c.tar.xz ruby-42afa18dad9272dc8bfc96d87c0a8f10d154907c.zip | |
More explanations for sincos.
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@3721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | ext/bigdecimal/bigdecimal_en.html | 2 | ||||
| -rw-r--r-- | ext/bigdecimal/bigdecimal_ja.html | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/ext/bigdecimal/bigdecimal_en.html b/ext/bigdecimal/bigdecimal_en.html index c87cd5ccd..ad4ac460c 100644 --- a/ext/bigdecimal/bigdecimal_en.html +++ b/ext/bigdecimal/bigdecimal_en.html @@ -467,7 +467,7 @@ computes square root value of a with significant digit number n at least.<BR> <LI><B>sincos</B></LI><BR> computes and returns sine and cosine value of a with significant digit number n at least.<BR> sin,cos = a.sincos(n)<BR> - +Computation may return bad results unless |a|<2*3.1415..... <LI><B>exp</B></LI><BR> c = a.exp(n)<BR> computes the base of natural logarithm value(e=2.718281828....) powered by a diff --git a/ext/bigdecimal/bigdecimal_ja.html b/ext/bigdecimal/bigdecimal_ja.html index bfddabd3b..e9fa7a090 100644 --- a/ext/bigdecimal/bigdecimal_ja.html +++ b/ext/bigdecimal/bigdecimal_ja.html @@ -415,6 +415,7 @@ a の有効桁 n 桁の sin と cos を同時に（テイラー展開で）計算して、 n は必要な有効桁数です（ n の sin や cos を計算するわけではありません）。 <BR> sin,cos = a.sincos(n)<BR> +|a|<2*3.1415....でないと正しい答えを計算できないこともあります。 <LI>exp</LI><BR> 自然対数の底e(=2.718281828....)の a 乗を計算します。<BR> c = a.exp(n)<BR> |