/* Module: math */ #[link_name = ""] #[abi = "cdecl"] native mod libc { fn sqrt(n: float) -> float; fn sin(n: float) -> float; fn asin(n: float) -> float; fn cos(n: float) -> float; fn acos(n: float) -> float; fn tan(n: float) -> float; fn atan(n: float) -> float; #[link_name="log"] fn ln(n: float) -> float; fn log2(n: float) -> float; fn log10(n: float) -> float; fn log1p(n: float) -> float; } /* Function: sqrt Returns the square root */ fn sqrt(x: float) -> float { libc::sqrt(x) } /* Function: sin Returns the sine of an angle */ fn sin(x: float) -> float { libc::sin(x) } /* Function: cos Returns the cosine of an angle */ fn cos(x: float) -> float { libc::cos(x) } /* Function: tan Returns the tangent of an angle */ fn tan(x: float) -> float { libc::tan(x) } /* Function: asin Returns the arcsine of an angle */ fn asin(x: float) -> float { libc::asin(x) } /* Function: acos Returns the arccosine of an angle */ fn acos(x: float) -> float { libc::acos(x) } /* Function: atan Returns the arctangent of an angle */ fn atan(x: float) -> float { libc::atan(x) } /* Const: pi Archimedes' constant */ const pi: float = 3.141592653589793; /* Function: min Returns the minimum of two values */ fn min(x: T, y: T) -> T { x < y ? x : y } /* Function: max Returns the maximum of two values */ fn max(x: T, y: T) -> T { x < y ? y : x } /* Const: e Euler's number */ const e: float = 2.718281828459045235; /* Function: ln Returns the natural logaritm */ fn ln(n: float) -> float { libc::ln(n) } /* Function: log2 Returns the logarithm to base 2 */ fn log2(n: float) -> float { libc::log2(n) } /* Function: log2 Returns the logarithm to base 10 */ fn log10(n: float) -> float { libc::log10(n) } /* Function: log1p Returns the natural logarithm of `1+n` accurately, even for very small values of `n` */ fn ln1p(n: float) -> float { libc::log1p(n) }