Bug #10487 » modify_cmath.rb.patch
| lib/cmath.rb | ||
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# it will be the base of logarithm.
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#
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# log(Complex(0,0)) #=> -Infinity+0.0i
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def log(*args)
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def log(z, b=E)
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begin
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z, b = args
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unless b.nil? || b.kind_of?(Numeric)
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raise TypeError, "Numeric Number required"
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end
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if z.real? and z >= 0 and (b.nil? or b >= 0)
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log!(*args)
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if z.real? && z >= 0 && b >= 0
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log!(z, b)
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else
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a = Complex(log!(z.abs), z.arg)
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if b
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a /= log(b)
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end
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a
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Complex(log!(z.abs), z.arg) / log(b)
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end
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rescue NoMethodError
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handle_no_method_error
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| ... | ... | |
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module_function :handle_no_method_error
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end
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