14 lines
302 B
Ruby
14 lines
302 B
Ruby
require 'facets/math/coth'
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require 'facets/numeric/range' # used to test within a precision
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test_case Math do
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class_method :coth do
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test do
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Math.coth(1.0).range(1.0e-6).assert === 1.0 / Math.tanh(1.0)
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Math.coth(2.0).range(1.0e-6).assert === 1.0 / Math.tanh(2.0)
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end
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end
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end
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