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Add trig functions and methods

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This commit is contained in:
Brendan Zabarauskas 2012-11-04 16:59:42 +10:00
parent e96a1d007f
commit 8a3a28481e
1 changed files with 41 additions and 3 deletions
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44
src/common/math.rs
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@ -169,13 +169,13 @@ impl float: Abs {
}
trait Sqrt {
pub trait Sqrt {
pure fn sqrt() -> self;
}
#[inline(always)]
pure fn sqrt<T: Sqrt>(x: T) -> T {
x.sqrt()
pure fn sqrt<T:Sqrt>(n: T) -> T {
n.sqrt()
}
pub impl<T: NumCast> T: Sqrt {
@ -183,4 +183,42 @@ pub impl<T: NumCast> T: Sqrt {
pure fn sqrt() -> T {
f64::sqrt(self.cast()).cast()
}
}
pub trait Trig {
pure fn sin() -> self;
pure fn cos() -> self;
pure fn tan() -> self;
pure fn asin() -> self;
pure fn acos() -> self;
pure fn atan() -> self;
pure fn sinh() -> self;
pure fn cosh() -> self;
pure fn tanh() -> self;
pure fn atan2(n: self) -> self;
}
#[inline(always)] pub pure fn sin<T:Trig>(n: T) -> T { n.sin() }
#[inline(always)] pub pure fn cos<T:Trig>(n: T) -> T { n.cos() }
#[inline(always)] pub pure fn tan<T:Trig>(n: T) -> T { n.tan() }
#[inline(always)] pub pure fn asin<T:Trig>(n: T) -> T { n.asin() }
#[inline(always)] pub pure fn acos<T:Trig>(n: T) -> T { n.acos() }
#[inline(always)] pub pure fn atan<T:Trig>(n: T) -> T { n.atan() }
#[inline(always)] pub pure fn sinh<T:Trig>(n: T) -> T { n.sinh() }
#[inline(always)] pub pure fn cosh<T:Trig>(n: T) -> T { n.cosh() }
#[inline(always)] pub pure fn tanh<T:Trig>(n: T) -> T { n.tanh() }
#[inline(always)] pub pure fn atan2<T:Trig>(a: T, b: T) -> T { a.atan2(move b) }
pub impl<T: NumCast> T: Trig {
#[inline(always)] pure fn sin() -> T { f64::sin(self.cast()).cast() }
#[inline(always)] pure fn cos() -> T { f64::cos(self.cast()).cast() }
#[inline(always)] pure fn tan() -> T { f64::tan(self.cast()).cast() }
#[inline(always)] pure fn asin() -> T { f64::asin(self.cast()).cast() }
#[inline(always)] pure fn acos() -> T { f64::acos(self.cast()).cast() }
#[inline(always)] pure fn atan() -> T { f64::atan(self.cast()).cast() }
#[inline(always)] pure fn sinh() -> T { f64::sinh(self.cast()).cast() }
#[inline(always)] pure fn cosh() -> T { f64::cosh(self.cast()).cast() }
#[inline(always)] pure fn tanh() -> T { f64::tanh(self.cast()).cast() }
#[inline(always)] pure fn atan2(n: T) -> T { f64::atan2(self.cast(), move n.cast()).cast() }
}