/usr/share/doc/ruby-gsl/examples/vector/compare.rb is in ruby-gsl 2.1.0.3+dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | #!/usr/bin/env ruby
# Turn on warnings
$-w = true
require 'irb/xmp'
require 'gsl'
# Apparently, IRB::Frame has a bug that prevents the defaults from working, so
# an XMP instance must be created explicitly this way instead of using the
# otherwise convenient xmp method.
XMP.new(IRB::Frame.top(-1)).puts <<END
# Create three Vectors: x, y, z
x = GSL::Vector::Int[1, 2, 3]
y = GSL::Vector::Int[1, 2, 5]
z = GSL::Vector::Int[0, 2, 9]
# Test element-wise "==" method
x.eq(y)
# Test element-wise "!=" method
x.ne(y)
# Test element-wise ">=" method
x.ge(y)
# Test element-wise "<" method
x.lt(z)
END
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