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authorusa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-12-14 15:59:18 +0000
committerusa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-12-14 15:59:18 +0000
commit72113d58cd2fc62b3f4ef3d2eb6cec37393532a4 (patch)
tree534843caaea28f1171378c1ac5bea0184ed04054 /ruby_2_2/ext/bigdecimal/sample
parent1a74fa4b04da04bd2bb33103dd3cf431438df38e (diff)
parent02b8978ff10b05304dbb46d73b49a2cf3a87cb92 (diff)
add tag v2_2_9v2_2_9
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v2_2_9@61259 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_2_2/ext/bigdecimal/sample')
-rw-r--r--ruby_2_2/ext/bigdecimal/sample/linear.rb72
-rw-r--r--ruby_2_2/ext/bigdecimal/sample/nlsolve.rb39
-rw-r--r--ruby_2_2/ext/bigdecimal/sample/pi.rb20
3 files changed, 0 insertions, 131 deletions
diff --git a/ruby_2_2/ext/bigdecimal/sample/linear.rb b/ruby_2_2/ext/bigdecimal/sample/linear.rb
deleted file mode 100644
index a33255f591..0000000000
--- a/ruby_2_2/ext/bigdecimal/sample/linear.rb
+++ /dev/null
@@ -1,72 +0,0 @@
-#!/usr/local/bin/ruby
-
-#
-# linear.rb
-#
-# Solves linear equation system(A*x = b) by LU decomposition method.
-# where A is a coefficient matrix,x is an answer vector,b is a constant vector.
-#
-# USAGE:
-# ruby linear.rb [input file solved]
-#
-
-# :stopdoc:
-require "bigdecimal"
-require "bigdecimal/ludcmp"
-
-#
-# NOTE:
-# Change following BigDecimal.limit() if needed.
-BigDecimal.limit(100)
-#
-
-include LUSolve
-def rd_order(na)
- printf("Number of equations ?") if(na <= 0)
- n = ARGF.gets().to_i
-end
-
-na = ARGV.size
-zero = BigDecimal.new("0.0")
-one = BigDecimal.new("1.0")
-
-while (n=rd_order(na))>0
- a = []
- as= []
- b = []
- if na <= 0
- # Read data from console.
- printf("\nEnter coefficient matrix element A[i,j]\n");
- for i in 0...n do
- for j in 0...n do
- printf("A[%d,%d]? ",i,j); s = ARGF.gets
- a << BigDecimal.new(s);
- as << BigDecimal.new(s);
- end
- printf("Contatant vector element b[%d] ? ",i); b << BigDecimal.new(ARGF.gets);
- end
- else
- # Read data from specified file.
- printf("Coefficient matrix and constant vector.\n");
- for i in 0...n do
- s = ARGF.gets
- printf("%d) %s",i,s)
- s = s.split
- for j in 0...n do
- a << BigDecimal.new(s[j]);
- as << BigDecimal.new(s[j]);
- end
- b << BigDecimal.new(s[n]);
- end
- end
- x = lusolve(a,b,ludecomp(a,n,zero,one),zero)
- printf("Answer(x[i] & (A*x-b)[i]) follows\n")
- for i in 0...n do
- printf("x[%d]=%s ",i,x[i].to_s)
- s = zero
- for j in 0...n do
- s = s + as[i*n+j]*x[j]
- end
- printf(" & %s\n",(s-b[i]).to_s)
- end
-end
diff --git a/ruby_2_2/ext/bigdecimal/sample/nlsolve.rb b/ruby_2_2/ext/bigdecimal/sample/nlsolve.rb
deleted file mode 100644
index 7fa921c2c3..0000000000
--- a/ruby_2_2/ext/bigdecimal/sample/nlsolve.rb
+++ /dev/null
@@ -1,39 +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 # :nodoc: all
- 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
diff --git a/ruby_2_2/ext/bigdecimal/sample/pi.rb b/ruby_2_2/ext/bigdecimal/sample/pi.rb
deleted file mode 100644
index 2f7dd27d60..0000000000
--- a/ruby_2_2/ext/bigdecimal/sample/pi.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/local/bin/ruby
-
-#
-# pi.rb
-#
-# Calculates 3.1415.... (the number of times that a circle's diameter
-# will fit around the circle) using J. Machin's formula.
-#
-
-require "bigdecimal"
-require "bigdecimal/math.rb"
-
-include BigMath
-
-if ARGV.size == 1
- print "PI("+ARGV[0]+"):\n"
- p PI(ARGV[0].to_i)
-else
- print "TRY: ruby pi.rb 1000 \n"
-end