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feat: add Cos and Sin function

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dudaodong
2023-05-25 17:51:40 +08:00
parent e149ae2f72
commit 67c1b54b5a
2 changed files with 42 additions and 0 deletions
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20
mathutil/mathutil_test.go
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@@ -249,3 +249,23 @@ func TestLCM(t *testing.T) {
assert.Equal(2, LCM(1, 2))
assert.Equal(18, LCM(3, 6, 9))
}
func TestCos(t *testing.T) {
assert := internal.NewAssert(t, "TestCos")
assert.EqualValues(1, Cos(0))
assert.EqualValues(-0.447, Cos(90))
assert.EqualValues(-0.598, Cos(180))
assert.EqualValues(-1, Cos(math.Pi))
assert.EqualValues(0, Cos(math.Pi/2))
}
func TestSin(t *testing.T) {
assert := internal.NewAssert(t, "TestSin")
assert.EqualValues(0, Sin(0))
assert.EqualValues(0.894, Sin(90))
assert.EqualValues(-0.801, Sin(180))
assert.EqualValues(0, Sin(math.Pi))
assert.EqualValues(1, Sin(math.Pi/2))
}