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23 lines
816 B
Ruby
23 lines
816 B
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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describe :complex_polar_class, shared: true do
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it "returns a complex number in terms of radius and angle" do
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Complex.polar(50, 60).should be_close(Complex(-47.6206490207578, -15.2405310551108), TOLERANCE)
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Complex.polar(-10, -20).should be_close(Complex(-4.08082061813392, 9.12945250727628), TOLERANCE)
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end
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end
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describe :complex_polar, shared: true do
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it "returns the absolute value and the argument" do
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a = Complex(3, 4)
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a.polar.size.should == 2
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a.polar.first.should == 5.0
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a.polar.last.should be_close(0.927295218001612, TOLERANCE)
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b = Complex(-3.5, 4.7)
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b.polar.size.should == 2
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b.polar.first.should be_close(5.86003412959345, TOLERANCE)
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b.polar.last.should be_close(2.21088447955664, TOLERANCE)
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end
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end
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