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Bug #10487 » modify_cmath.rb.patch

gogotanaka (Kazuki Tanaka), 11/08/2014 07:50 PM

View differences:

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