mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
32 lines
1.4 KiB
Ruby
32 lines
1.4 KiB
Ruby
require_relative '../fixtures/classes'
|
|
|
|
describe :complex_math_tanh, shared: true do
|
|
it "returns the hyperbolic tangent of the argument" do
|
|
@object.send(:tanh, 0.0).should == 0.0
|
|
@object.send(:tanh, -0.0).should == -0.0
|
|
@object.send(:tanh, infinity_value).should == 1.0
|
|
@object.send(:tanh, -infinity_value).should == -1.0
|
|
@object.send(:tanh, 2.5).should be_close(0.98661429815143, TOLERANCE)
|
|
@object.send(:tanh, -4.892).should be_close(-0.999887314427707, TOLERANCE)
|
|
end
|
|
|
|
it "returns the hyperbolic tangent for Complex numbers" do
|
|
@object.send(:tanh, Complex(0, CMath::PI)).should be_close(Complex(0.0, -1.22464679914735e-16), TOLERANCE)
|
|
@object.send(:tanh, Complex(3, 4)).should be_close(Complex(1.00070953606723, 0.00490825806749599), TOLERANCE)
|
|
end
|
|
end
|
|
|
|
describe :complex_math_tanh_bang, shared: true do
|
|
it "returns the hyperbolic tangent of the argument" do
|
|
@object.send(:tanh!, 0.0).should == 0.0
|
|
@object.send(:tanh!, -0.0).should == -0.0
|
|
@object.send(:tanh!, infinity_value).should == 1.0
|
|
@object.send(:tanh!, -infinity_value).should == -1.0
|
|
@object.send(:tanh!, 2.5).should be_close(0.98661429815143, TOLERANCE)
|
|
@object.send(:tanh!, -4.892).should be_close(-0.999887314427707, TOLERANCE)
|
|
end
|
|
|
|
it "raises a TypeError when passed a Complex number" do
|
|
-> { @object.send(:tanh!, Complex(4, 5)) }.should raise_error(TypeError)
|
|
end
|
|
end
|