From 6bee2fd193b94f00c7f4025fc3d62282f867e60d Mon Sep 17 00:00:00 2001 From: mattn Date: Thu, 28 Feb 2013 17:52:18 +0900 Subject: Pluggable Math --- test/t/math.rb | 125 --------------------------------------------------------- 1 file changed, 125 deletions(-) delete mode 100644 test/t/math.rb (limited to 'test') diff --git a/test/t/math.rb b/test/t/math.rb deleted file mode 100644 index 780b805d2..000000000 --- a/test/t/math.rb +++ /dev/null @@ -1,125 +0,0 @@ -## -# Math Test - -if Object.const_defined?(:Math) - assert('Math.sin 0') do - check_float(Math.sin(0), 0) - end - - assert('Math.sin PI/2') do - check_float(Math.sin(Math::PI / 2), 1) - end - - assert('Fundamental trig identities') do - result = true - N = 13 - N.times do |i| - a = Math::PI / N * i - ca = Math::PI / 2 - a - s = Math.sin(a) - c = Math.cos(a) - t = Math.tan(a) - result &= check_float(s, Math.cos(ca)) - result &= check_float(t, 1 / Math.tan(ca)) - result &= check_float(s ** 2 + c ** 2, 1) - result &= check_float(t ** 2 + 1, (1/c) ** 2) - result &= check_float((1/t) ** 2 + 1, (1/s) ** 2) - end - result - end - - assert('Math.erf 0') do - check_float(Math.erf(0), 0) - end - - assert('Math.exp 0') do - check_float(Math.exp(0), 1.0) - end - - assert('Math.exp 1') do - check_float(Math.exp(1), 2.718281828459045) - end - - assert('Math.exp 1.5') do - check_float(Math.exp(1.5), 4.4816890703380645) - end - - assert('Math.log 1') do - check_float(Math.log(1), 0) - end - - assert('Math.log E') do - check_float(Math.log(Math::E), 1.0) - end - - assert('Math.log E**3') do - check_float(Math.log(Math::E**3), 3.0) - end - - assert('Math.log2 1') do - check_float(Math.log2(1), 0.0) - end - - assert('Math.log2 2') do - check_float(Math.log2(2), 1.0) - end - - assert('Math.log10 1') do - check_float(Math.log10(1), 0.0) - end - - assert('Math.log10 10') do - check_float(Math.log10(10), 1.0) - end - - assert('Math.log10 10**100') do - check_float(Math.log10(10**100), 100.0) - end - - assert('Math.sqrt') do - num = [0.0, 1.0, 2.0, 3.0, 4.0] - sqr = [0, 1, 4, 9, 16] - result = true - sqr.each_with_index do |v,i| - result &= check_float(Math.sqrt(v), num[i]) - end - result - end - - assert('Math.cbrt') do - num = [-2.0, -1.0, 0.0, 1.0, 2.0] - cub = [-8, -1, 0, 1, 8] - result = true - cub.each_with_index do |v,i| - result &= check_float(Math.cbrt(v), num[i]) - end - result - end - - assert('Math.hypot') do - check_float(Math.hypot(3, 4), 5.0) - end - - assert('Math.frexp 1234') do - n = 1234 - fraction, exponent = Math.frexp(n) - check_float(Math.ldexp(fraction, exponent), n) - end - - assert('Math.erf 1') do - check_float(Math.erf(1), 0.842700792949715) - end - - assert('Math.erfc 1') do - check_float(Math.erfc(1), 0.157299207050285) - end - - assert('Math.erf -1') do - check_float(Math.erf(-1), -0.8427007929497148) - end - - assert('Math.erfc -1') do - check_float(Math.erfc(-1), 1.8427007929497148) - end -end - -- cgit v1.2.3