Trait std::num::Float
pub trait Float: Signed + Round + Primitive {
fn max(self, other: Self) -> Self;
fn min(self, other: Self) -> Self;
fn nan() -> Self;
fn infinity() -> Self;
fn neg_infinity() -> Self;
fn neg_zero() -> Self;
fn is_nan(&self) -> bool;
fn is_infinite(&self) -> bool;
fn is_finite(&self) -> bool;
fn is_normal(&self) -> bool;
fn classify(&self) -> FPCategory;
fn mantissa_digits(unused_self: Option<Self>) -> uint;
fn digits(unused_self: Option<Self>) -> uint;
fn epsilon() -> Self;
fn min_exp(unused_self: Option<Self>) -> int;
fn max_exp(unused_self: Option<Self>) -> int;
fn min_10_exp(unused_self: Option<Self>) -> int;
fn max_10_exp(unused_self: Option<Self>) -> int;
fn ldexp(x: Self, exp: int) -> Self;
fn frexp(&self) -> (Self, int);
fn exp_m1(&self) -> Self;
fn ln_1p(&self) -> Self;
fn mul_add(&self, a: Self, b: Self) -> Self;
fn next_after(&self, other: Self) -> Self;
fn integer_decode(&self) -> (u64, i16, i8);
fn pi() -> Self;
fn two_pi() -> Self;
fn frac_pi_2() -> Self;
fn frac_pi_3() -> Self;
fn frac_pi_4() -> Self;
fn frac_pi_6() -> Self;
fn frac_pi_8() -> Self;
fn frac_1_pi() -> Self;
fn frac_2_pi() -> Self;
fn frac_2_sqrtpi() -> Self;
fn sqrt2() -> Self;
fn frac_1_sqrt2() -> Self;
fn e() -> Self;
fn log2_e() -> Self;
fn log10_e() -> Self;
fn ln_2() -> Self;
fn ln_10() -> Self;
fn recip(&self) -> Self;
fn powf(&self, n: &Self) -> Self;
fn sqrt(&self) -> Self;
fn rsqrt(&self) -> Self;
fn cbrt(&self) -> Self;
fn hypot(&self, other: &Self) -> Self;
fn sin(&self) -> Self;
fn cos(&self) -> Self;
fn tan(&self) -> Self;
fn asin(&self) -> Self;
fn acos(&self) -> Self;
fn atan(&self) -> Self;
fn atan2(&self, other: &Self) -> Self;
fn sin_cos(&self) -> (Self, Self);
fn exp(&self) -> Self;
fn exp2(&self) -> Self;
fn ln(&self) -> Self;
fn log(&self, base: &Self) -> Self;
fn log2(&self) -> Self;
fn log10(&self) -> Self;
fn sinh(&self) -> Self;
fn cosh(&self) -> Self;
fn tanh(&self) -> Self;
fn asinh(&self) -> Self;
fn acosh(&self) -> Self;
fn atanh(&self) -> Self;
fn to_degrees(&self) -> Self;
fn to_radians(&self) -> Self;
}Operations on primitive floating point numbers.
Required Methods
fn max(self, other: Self) -> Self
Returns the maximum of the two numbers.
fn min(self, other: Self) -> Self
Returns the minimum of the two numbers.
fn nan() -> Self
Returns the NaN value.
fn infinity() -> Self
Returns the infinite value.
fn neg_infinity() -> Self
Returns the negative infinite value.
fn neg_zero() -> Self
Returns -0.0.
fn is_nan(&self) -> bool
Returns true if this value is NaN and false otherwise.
fn is_infinite(&self) -> bool
Returns true if this value is positive infinity or negative infinity and false otherwise.
fn is_finite(&self) -> bool
Returns true if this number is neither infinite nor NaN.
fn is_normal(&self) -> bool
Returns true if this number is neither zero, infinite, denormal, or NaN.
fn classify(&self) -> FPCategory
Returns the category that this number falls into.
fn mantissa_digits(unused_self: Option<Self>) -> uint
Returns the number of binary digits of mantissa that this type supports.
fn digits(unused_self: Option<Self>) -> uint
Returns the number of binary digits of exponent that this type supports.
fn epsilon() -> Self
Returns the smallest positive number that this type can represent.
fn min_exp(unused_self: Option<Self>) -> int
Returns the minimum binary exponent that this type can represent.
fn max_exp(unused_self: Option<Self>) -> int
Returns the maximum binary exponent that this type can represent.
fn min_10_exp(unused_self: Option<Self>) -> int
Returns the minimum base-10 exponent that this type can represent.
fn max_10_exp(unused_self: Option<Self>) -> int
Returns the maximum base-10 exponent that this type can represent.
fn ldexp(x: Self, exp: int) -> Self
Constructs a floating point number created by multiplying x by 2 raised to the power of
exp.
fn frexp(&self) -> (Self, int)
Breaks the number into a normalized fraction and a base-2 exponent, satisfying:
self = x * pow(2, exp)0.5 <= abs(x) < 1.0
fn exp_m1(&self) -> Self
Returns the exponential of the number, minus 1, in a way that is accurate even if the number is close to zero.
fn ln_1p(&self) -> Self
Returns the natural logarithm of the number plus 1 (ln(1+n)) more accurately than if the
operations were performed separately.
fn mul_add(&self, a: Self, b: Self) -> Self
Fused multiply-add. Computes (self * a) + b with only one rounding error. This produces a
more accurate result with better performance than a separate multiplication operation
followed by an add.
fn next_after(&self, other: Self) -> Self
Returns the next representable floating-point value in the direction of other.
fn integer_decode(&self) -> (u64, i16, i8)
Returns the mantissa, exponent and sign as integers, respectively.
fn pi() -> Self
Archimedes' constant.
fn two_pi() -> Self
2.0 * pi.
fn frac_pi_2() -> Self
pi / 2.0.
fn frac_pi_3() -> Self
pi / 3.0.
fn frac_pi_4() -> Self
pi / 4.0.
fn frac_pi_6() -> Self
pi / 6.0.
fn frac_pi_8() -> Self
pi / 8.0.
fn frac_1_pi() -> Self
1.0 / pi.
fn frac_2_pi() -> Self
2.0 / pi.
fn frac_2_sqrtpi() -> Self
2.0 / sqrt(pi).
fn sqrt2() -> Self
sqrt(2.0).
fn frac_1_sqrt2() -> Self
1.0 / sqrt(2.0).
fn e() -> Self
Euler's number.
fn log2_e() -> Self
log2(e).
fn log10_e() -> Self
log10(e).
fn ln_2() -> Self
ln(2.0).
fn ln_10() -> Self
ln(10.0).
fn recip(&self) -> Self
Take the reciprocal (inverse) of a number, 1/x.
fn powf(&self, n: &Self) -> Self
Raise a number to a power.
fn sqrt(&self) -> Self
Take the square root of a number.
fn rsqrt(&self) -> Self
Take the reciprocal (inverse) square root of a number, 1/sqrt(x).
fn cbrt(&self) -> Self
Take the cubic root of a number.
fn hypot(&self, other: &Self) -> Self
Calculate the length of the hypotenuse of a right-angle triangle given
legs of length x and y.
fn sin(&self) -> Self
Computes the sine of a number (in radians).
fn cos(&self) -> Self
Computes the cosine of a number (in radians).
fn tan(&self) -> Self
Computes the tangent of a number (in radians).
fn asin(&self) -> Self
Computes the arcsine of a number. Return value is in radians in the range [-pi/2, pi/2] or NaN if the number is outside the range [-1, 1].
fn acos(&self) -> Self
Computes the arccosine of a number. Return value is in radians in the range [0, pi] or NaN if the number is outside the range [-1, 1].
fn atan(&self) -> Self
Computes the arctangent of a number. Return value is in radians in the range [-pi/2, pi/2];
fn atan2(&self, other: &Self) -> Self
Computes the four quadrant arctangent of a number, y, and another
number x. Return value is in radians in the range [-pi, pi].
fn sin_cos(&self) -> (Self, Self)
Simultaneously computes the sine and cosine of the number, x. Returns
(sin(x), cos(x)).
fn exp(&self) -> Self
Returns e^(self), (the exponential function).
fn exp2(&self) -> Self
Returns 2 raised to the power of the number, 2^(self).
fn ln(&self) -> Self
Returns the natural logarithm of the number.
fn log(&self, base: &Self) -> Self
Returns the logarithm of the number with respect to an arbitrary base.
fn log2(&self) -> Self
Returns the base 2 logarithm of the number.
fn log10(&self) -> Self
Returns the base 10 logarithm of the number.
fn sinh(&self) -> Self
Hyperbolic sine function.
fn cosh(&self) -> Self
Hyperbolic cosine function.
fn tanh(&self) -> Self
Hyperbolic tangent function.
fn asinh(&self) -> Self
Inverse hyperbolic sine function.
fn acosh(&self) -> Self
Inverse hyperbolic cosine function.
fn atanh(&self) -> Self
Inverse hyperbolic tangent function.
fn to_degrees(&self) -> Self
Convert radians to degrees.
fn to_radians(&self) -> Self
Convert degrees to radians.