Add more std documentation

1 files changed, 57 insertions, 0 deletions

diff --git a/src/lib/math.rs b/src/lib/math.rs
index c9a27f0eca9..5f35d0d06d7 100644
--- a/src/lib/math.rs
+++ b/src/lib/math.rs
@@ -10,15 +10,72 @@ native "llvm" mod llvm {
     fn atan(n: float) -> float = "atan.f64";
 }
 
+/*
+Function: sqrt
+
+Returns the square root
+*/
 fn sqrt(x: float) -> float { llvm::sqrt(x) }
+
+/*
+Function: sin
+
+Returns the sine of an angle
+*/
 fn sin(x: float) -> float { llvm::sin(x) }
+
+/*
+Function: cos
+
+Returns the cosine of an angle
+*/
 fn cos(x: float) -> float { llvm::cos(x) }
+
+/*
+Function: tan
+
+Returns the tangent of an angle
+*/
 fn tan(x: float) -> float { llvm::tan(x) }
+
+/*
+Function: asin
+
+Returns the arcsine of an angle
+*/
 fn asin(x: float) -> float { llvm::asin(x) }
+
+/*
+Function: acos
+
+Returns the arccosine of an angle
+*/
 fn acos(x: float) -> float { llvm::acos(x) }
+
+/*
+Function: atan
+
+Returns the arctangent of an angle
+*/
 fn atan(x: float) -> float { llvm::atan(x) }
 
+/*
+Const: pi
+
+Archimedes' constant
+*/
 const pi: float = 3.141592653589793;
 
+/*
+Function: min
+
+Returns the minimum of two values
+*/
 fn min<T>(x: T, y: T) -> T { x < y ? x : y }
+
+/*
+Function: max
+
+Returns the maximum of two values
+*/
 fn max<T>(x: T, y: T) -> T { x < y ? y : x }