3 files changed, 0 insertions, 135 deletions
diff --git a/ext/bigdecimal/sample/linear.rb b/ext/bigdecimal/sample/linear.rb
deleted file mode 100644
index 516c2473be..0000000000
--- a/ext/bigdecimal/sample/linear.rb
+++ /dev/null
@@ -1,74 +0,0 @@
-#!/usr/local/bin/ruby
-# frozen_string_literal: false
-
-#
-# 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("0.0")
-one  = BigDecimal("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(s)
-         as << BigDecimal(s)
-       end
-       printf("Contatant vector element b[%d] ? ",i)
-       b << BigDecimal(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(s[j])
-         as << BigDecimal(s[j])
-       end
-       b << BigDecimal(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/ext/bigdecimal/sample/nlsolve.rb b/ext/bigdecimal/sample/nlsolve.rb
deleted file mode 100644
index c2227dac73..0000000000
--- a/ext/bigdecimal/sample/nlsolve.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/usr/local/bin/ruby
-# frozen_string_literal: false
-
-#
-# 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("0.0")
-    @one  = BigDecimal("1.0")
-    @two  = BigDecimal("2.0")
-    @ten  = BigDecimal("10.0")
-    @eps  = BigDecimal("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/ext/bigdecimal/sample/pi.rb b/ext/bigdecimal/sample/pi.rb
deleted file mode 100644
index ea9663896c..0000000000
--- a/ext/bigdecimal/sample/pi.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/usr/local/bin/ruby
-# frozen_string_literal: false
-
-#
-# 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