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add angle func

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This commit is contained in:
hazohelet
2019-07-07 23:13:17 +09:00
committed by Alexander Medvednikov
parent b40ad7c83f
commit ccf733ac95
2 changed files with 22 additions and 2 deletions
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17
vlib/math/complex_test.v
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@ -101,4 +101,19 @@ fn test_complex_equals() {
c1 = math.complex(-3,19)
c2 = math.complex(-3,19)
assert c1.equals(c2)
}
}
fn test_complex_angle(){
mut c := math.complex(1, 0)
assert c.angle() * 180 / math.Pi == 0
c = math.complex(1, 1)
assert c.angle() * 180 / math.Pi == 45
c = math.complex(0, 1)
assert c.angle() * 180 / math.Pi == 90
c = math.complex(-1, 1)
assert c.angle() * 180 / math.Pi == 135
c = math.complex(-1, -1)
assert c.angle() * 180 / math.Pi == -135
mut cc := c.conjugate()
assert cc.angle() + c.angle() == 0
}