Bug #3270: BigMath.exp が絶対値が大きな引数で遅い

• Status: Closed
• Assignee: mrkn (Kenta Murata)
• Target version: 2.6
• ruby -v: ruby 1.9.3dev (2010-05-11 trunk 27729) [x86_64-darwin10.3.0]
• Backport: 2.3: UNKNOWN, 2.4: UNKNOWN

[mrkn (Kenta Murata)]

=begin
Rubyについて Part 40
http://pc12.2ch.net/test/read.cgi/tech/1272248179/121-122

あと、expの絶対値が大きくなると、戻って来ないのよね。
exp(a*b+c) = exp(a)**b * exp(c)
を使うと、幸せになれるかも。（ん十倍の威力で）
=end

[mrkn (Kenta Murata)]

• Status changed from Open to Assigned

=begin

=end

[mrkn (Kenta Murata)]

• Category set to lib

=begin

=end

[nahi (Hiroshi Nakamura)]

• Target version changed from 2.0.0 to 1.9.3

[mrkn (Kenta Murata)]

• Target version changed from 1.9.3 to 2.0.0

[mrkn (Kenta Murata)]

• Target version changed from 2.0.0 to 2.6

[mrkn (Kenta Murata)]

• Status changed from Assigned to Closed

This was migrated to https://github.com/ruby/bigdecimal/issues/82