20 lines
512 B
Ruby
20 lines
512 B
Ruby
require 'facets/math/cosech'
|
|
|
|
test_case Math do
|
|
|
|
class_method :cosech do
|
|
test do
|
|
Math.cosech(-1.0).assert == 1.0 / Math.sinh(-1.0)
|
|
Math.cosech( 1.0).assert == 1.0 / Math.sinh( 1.0)
|
|
end
|
|
|
|
test "check complementarity of cosech and sinh" do
|
|
(Math.cosech(-2.0) * Math.sinh(-2.0)).assert == 1.0
|
|
(Math.cosech(-1.0) * Math.sinh(-1.0)).assert == 1.0
|
|
(Math.cosech( 1.0) * Math.sinh( 1.0)).assert == 1.0
|
|
(Math.cosech( 2.0) * Math.sinh( 2.0)).assert == 1
|
|
end
|
|
end
|
|
|
|
end
|