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authorshyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-08-15 20:57:30 +0000
committershyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-08-15 20:57:30 +0000
commit54ec1c4fe81672ca66f327ef6ae170f458cd79e5 (patch)
tree45a752c60a9a08d681a792b70f43c89903b638a2 /ruby_1_8_5/ext/bigdecimal/sample/nlsolve.rb
parentd464704f111d211c1f1ff9ef23ef1d755054be00 (diff)
sorry. I made wrong tags.v1_8_5_54
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@13009 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_5/ext/bigdecimal/sample/nlsolve.rb')
-rw-r--r--ruby_1_8_5/ext/bigdecimal/sample/nlsolve.rb38
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diff --git a/ruby_1_8_5/ext/bigdecimal/sample/nlsolve.rb b/ruby_1_8_5/ext/bigdecimal/sample/nlsolve.rb
deleted file mode 100644
index 7f729e6aaa..0000000000
--- a/ruby_1_8_5/ext/bigdecimal/sample/nlsolve.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/usr/local/bin/ruby
-
-#
-# nlsolve.rb
-# An example for solving nonlinear algebraic equation system.
-#
-
-require "bigdecimal"
-require "bigdecimal/newton"
-include Newton
-
-class Function
- def initialize()
- @zero = BigDecimal::new("0.0")
- @one = BigDecimal::new("1.0")
- @two = BigDecimal::new("2.0")
- @ten = BigDecimal::new("10.0")
- @eps = BigDecimal::new("1.0e-16")
- end
- def zero;@zero;end
- def one ;@one ;end
- def two ;@two ;end
- def ten ;@ten ;end
- def eps ;@eps ;end
- def values(x) # <= defines functions solved
- f = []
- f1 = x[0]*x[0] + x[1]*x[1] - @two # f1 = x**2 + y**2 - 2 => 0
- f2 = x[0] - x[1] # f2 = x - y => 0
- f <<= f1
- f <<= f2
- f
- end
-end
- f = BigDecimal::limit(100)
- f = Function.new
- x = [f.zero,f.zero] # Initial values
- n = nlsolve(f,x)
- p x