Sha256: 3010403d440530b92e13a72de5624c8b33a9bb9c2618362b71a99d6988947e38
Contents?: true
Size: 612 Bytes
Versions: 8
Compression:
Stored size: 612 Bytes
Contents
require 'spec_helper'
require 'bioinform/support/inverf'
describe 'Math#inverf' do
it 'should be erf(inverf(x)) == x' do
rng = (-0.9..0.9).step(0.1)
arr = rng.to_a
arr2 = rng.map{|x| Math.inverf(x)}.map{|x| Math.erf(x)}
delta = arr.each_index.map{|i| (arr[i] - arr2[i]).abs }
delta.each{|el| el.should <= 0.001}
end
it 'should be erf(inverf(x)) == x' do
rng = (-5..5).step(1)
arr = rng.to_a
arr2 = rng.map{|x| Math.erf(x)}.map{|x| Math.inverf(x)}
delta = arr.each_index.map{|i| (arr[i] - arr2[i]).abs }
delta.each{|el| el.should <= 0.01}
end
end
Version data entries
8 entries across 8 versions & 1 rubygems