diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-09-03 05:49:06 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-09-03 05:49:06 +0000 |
| commit | 7c2230bd8c8a16a976091f983737d94ce52959d1 (patch) | |
| tree | 4514272cb7d8e21b44593c0b3dd7c8ea8146ca18 /lib/matrix.rb | |
| parent | a4ce3ab4fd5982af49662320839f8ec109d63881 (diff) | |
matrix.rb: complex vector
* lib/matrix.rb (Vector#magnitude): accumulate squares of absolute
values to fix for complex vector. [ruby-dev:46100] [Bug #6966]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36887 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/matrix.rb')
| -rw-r--r-- | lib/matrix.rb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb index 8f57c73904..00fa762da6 100644 --- a/lib/matrix.rb +++ b/lib/matrix.rb @@ -1770,7 +1770,7 @@ class Vector # Vector[5,8,2].r => 9.643650761 # def magnitude - Math.sqrt(@elements.inject(0) {|v, e| v + e*e}) + Math.sqrt(@elements.inject(0) {|v, e| v + e.abs2}) end alias r magnitude alias norm magnitude |