Deleted vendor folder

1 files changed, 0 insertions, 834 deletions

diff --git a/vendor/num-traits/src/real.rs b/vendor/num-traits/src/real.rs
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index d4feee0..0000000
--- a/vendor/num-traits/src/real.rs
+++ /dev/null
@@ -1,834 +0,0 @@
-#![cfg(any(feature = "std", feature = "libm"))]
-
-use core::ops::Neg;
-
-use crate::{Float, Num, NumCast};
-
-// NOTE: These doctests have the same issue as those in src/float.rs.
-// They're testing the inherent methods directly, and not those of `Real`.
-
-/// A trait for real number types that do not necessarily have
-/// floating-point-specific characteristics such as NaN and infinity.
-///
-/// See [this Wikipedia article](https://en.wikipedia.org/wiki/Real_data_type)
-/// for a list of data types that could meaningfully implement this trait.
-///
-/// This trait is only available with the `std` feature, or with the `libm` feature otherwise.
-pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
-    /// Returns the smallest finite value that this type can represent.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x: f64 = Real::min_value();
-    ///
-    /// assert_eq!(x, f64::MIN);
-    /// ```
-    fn min_value() -> Self;
-
-    /// Returns the smallest positive, normalized value that this type can represent.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x: f64 = Real::min_positive_value();
-    ///
-    /// assert_eq!(x, f64::MIN_POSITIVE);
-    /// ```
-    fn min_positive_value() -> Self;
-
-    /// Returns epsilon, a small positive value.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x: f64 = Real::epsilon();
-    ///
-    /// assert_eq!(x, f64::EPSILON);
-    /// ```
-    ///
-    /// # Panics
-    ///
-    /// The default implementation will panic if `f32::EPSILON` cannot
-    /// be cast to `Self`.
-    fn epsilon() -> Self;
-
-    /// Returns the largest finite value that this type can represent.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x: f64 = Real::max_value();
-    /// assert_eq!(x, f64::MAX);
-    /// ```
-    fn max_value() -> Self;
-
-    /// Returns the largest integer less than or equal to a number.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let f = 3.99;
-    /// let g = 3.0;
-    ///
-    /// assert_eq!(f.floor(), 3.0);
-    /// assert_eq!(g.floor(), 3.0);
-    /// ```
-    fn floor(self) -> Self;
-
-    /// Returns the smallest integer greater than or equal to a number.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let f = 3.01;
-    /// let g = 4.0;
-    ///
-    /// assert_eq!(f.ceil(), 4.0);
-    /// assert_eq!(g.ceil(), 4.0);
-    /// ```
-    fn ceil(self) -> Self;
-
-    /// Returns the nearest integer to a number. Round half-way cases away from
-    /// `0.0`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let f = 3.3;
-    /// let g = -3.3;
-    ///
-    /// assert_eq!(f.round(), 3.0);
-    /// assert_eq!(g.round(), -3.0);
-    /// ```
-    fn round(self) -> Self;
-
-    /// Return the integer part of a number.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let f = 3.3;
-    /// let g = -3.7;
-    ///
-    /// assert_eq!(f.trunc(), 3.0);
-    /// assert_eq!(g.trunc(), -3.0);
-    /// ```
-    fn trunc(self) -> Self;
-
-    /// Returns the fractional part of a number.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 3.5;
-    /// let y = -3.5;
-    /// let abs_difference_x = (x.fract() - 0.5).abs();
-    /// let abs_difference_y = (y.fract() - (-0.5)).abs();
-    ///
-    /// assert!(abs_difference_x < 1e-10);
-    /// assert!(abs_difference_y < 1e-10);
-    /// ```
-    fn fract(self) -> Self;
-
-    /// Computes the absolute value of `self`. Returns `Float::nan()` if the
-    /// number is `Float::nan()`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x = 3.5;
-    /// let y = -3.5;
-    ///
-    /// let abs_difference_x = (x.abs() - x).abs();
-    /// let abs_difference_y = (y.abs() - (-y)).abs();
-    ///
-    /// assert!(abs_difference_x < 1e-10);
-    /// assert!(abs_difference_y < 1e-10);
-    ///
-    /// assert!(::num_traits::Float::is_nan(f64::NAN.abs()));
-    /// ```
-    fn abs(self) -> Self;
-
-    /// Returns a number that represents the sign of `self`.
-    ///
-    /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()`
-    /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()`
-    /// - `Float::nan()` if the number is `Float::nan()`
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let f = 3.5;
-    ///
-    /// assert_eq!(f.signum(), 1.0);
-    /// assert_eq!(f64::NEG_INFINITY.signum(), -1.0);
-    ///
-    /// assert!(f64::NAN.signum().is_nan());
-    /// ```
-    fn signum(self) -> Self;
-
-    /// Returns `true` if `self` is positive, including `+0.0`,
-    /// `Float::infinity()`, and with newer versions of Rust `f64::NAN`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let neg_nan: f64 = -f64::NAN;
-    ///
-    /// let f = 7.0;
-    /// let g = -7.0;
-    ///
-    /// assert!(f.is_sign_positive());
-    /// assert!(!g.is_sign_positive());
-    /// assert!(!neg_nan.is_sign_positive());
-    /// ```
-    fn is_sign_positive(self) -> bool;
-
-    /// Returns `true` if `self` is negative, including `-0.0`,
-    /// `Float::neg_infinity()`, and with newer versions of Rust `-f64::NAN`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let nan: f64 = f64::NAN;
-    ///
-    /// let f = 7.0;
-    /// let g = -7.0;
-    ///
-    /// assert!(!f.is_sign_negative());
-    /// assert!(g.is_sign_negative());
-    /// assert!(!nan.is_sign_negative());
-    /// ```
-    fn is_sign_negative(self) -> bool;
-
-    /// Fused multiply-add. Computes `(self * a) + b` with only one rounding
-    /// error, yielding a more accurate result than an unfused multiply-add.
-    ///
-    /// Using `mul_add` can be more performant than an unfused multiply-add if
-    /// the target architecture has a dedicated `fma` CPU instruction.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let m = 10.0;
-    /// let x = 4.0;
-    /// let b = 60.0;
-    ///
-    /// // 100.0
-    /// let abs_difference = (m.mul_add(x, b) - (m*x + b)).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn mul_add(self, a: Self, b: Self) -> Self;
-
-    /// Take the reciprocal (inverse) of a number, `1/x`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 2.0;
-    /// let abs_difference = (x.recip() - (1.0/x)).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn recip(self) -> Self;
-
-    /// Raise a number to an integer power.
-    ///
-    /// Using this function is generally faster than using `powf`
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 2.0;
-    /// let abs_difference = (x.powi(2) - x*x).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn powi(self, n: i32) -> Self;
-
-    /// Raise a number to a real number power.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 2.0;
-    /// let abs_difference = (x.powf(2.0) - x*x).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn powf(self, n: Self) -> Self;
-
-    /// Take the square root of a number.
-    ///
-    /// Returns NaN if `self` is a negative floating-point number.  
-    ///
-    /// # Panics
-    ///
-    /// If the implementing type doesn't support NaN, this method should panic if `self < 0`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let positive = 4.0;
-    /// let negative = -4.0;
-    ///
-    /// let abs_difference = (positive.sqrt() - 2.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// assert!(::num_traits::Float::is_nan(negative.sqrt()));
-    /// ```
-    fn sqrt(self) -> Self;
-
-    /// Returns `e^(self)`, (the exponential function).
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let one = 1.0;
-    /// // e^1
-    /// let e = one.exp();
-    ///
-    /// // ln(e) - 1 == 0
-    /// let abs_difference = (e.ln() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn exp(self) -> Self;
-
-    /// Returns `2^(self)`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let f = 2.0;
-    ///
-    /// // 2^2 - 4 == 0
-    /// let abs_difference = (f.exp2() - 4.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn exp2(self) -> Self;
-
-    /// Returns the natural logarithm of the number.
-    ///
-    /// # Panics
-    ///
-    /// If `self <= 0` and this type does not support a NaN representation, this function should panic.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let one = 1.0;
-    /// // e^1
-    /// let e = one.exp();
-    ///
-    /// // ln(e) - 1 == 0
-    /// let abs_difference = (e.ln() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn ln(self) -> Self;
-
-    /// Returns the logarithm of the number with respect to an arbitrary base.
-    ///
-    /// # Panics
-    ///
-    /// If `self <= 0` and this type does not support a NaN representation, this function should panic.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let ten = 10.0;
-    /// let two = 2.0;
-    ///
-    /// // log10(10) - 1 == 0
-    /// let abs_difference_10 = (ten.log(10.0) - 1.0).abs();
-    ///
-    /// // log2(2) - 1 == 0
-    /// let abs_difference_2 = (two.log(2.0) - 1.0).abs();
-    ///
-    /// assert!(abs_difference_10 < 1e-10);
-    /// assert!(abs_difference_2 < 1e-10);
-    /// ```
-    fn log(self, base: Self) -> Self;
-
-    /// Returns the base 2 logarithm of the number.
-    ///
-    /// # Panics
-    ///
-    /// If `self <= 0` and this type does not support a NaN representation, this function should panic.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let two = 2.0;
-    ///
-    /// // log2(2) - 1 == 0
-    /// let abs_difference = (two.log2() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn log2(self) -> Self;
-
-    /// Returns the base 10 logarithm of the number.
-    ///
-    /// # Panics
-    ///
-    /// If `self <= 0` and this type does not support a NaN representation, this function should panic.
-    ///
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let ten = 10.0;
-    ///
-    /// // log10(10) - 1 == 0
-    /// let abs_difference = (ten.log10() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn log10(self) -> Self;
-
-    /// Converts radians to degrees.
-    ///
-    /// ```
-    /// use std::f64::consts;
-    ///
-    /// let angle = consts::PI;
-    ///
-    /// let abs_difference = (angle.to_degrees() - 180.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn to_degrees(self) -> Self;
-
-    /// Converts degrees to radians.
-    ///
-    /// ```
-    /// use std::f64::consts;
-    ///
-    /// let angle = 180.0_f64;
-    ///
-    /// let abs_difference = (angle.to_radians() - consts::PI).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn to_radians(self) -> Self;
-
-    /// Returns the maximum of the two numbers.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 1.0;
-    /// let y = 2.0;
-    ///
-    /// assert_eq!(x.max(y), y);
-    /// ```
-    fn max(self, other: Self) -> Self;
-
-    /// Returns the minimum of the two numbers.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 1.0;
-    /// let y = 2.0;
-    ///
-    /// assert_eq!(x.min(y), x);
-    /// ```
-    fn min(self, other: Self) -> Self;
-
-    /// The positive difference of two numbers.
-    ///
-    /// * If `self <= other`: `0:0`
-    /// * Else: `self - other`
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 3.0;
-    /// let y = -3.0;
-    ///
-    /// let abs_difference_x = (x.abs_sub(1.0) - 2.0).abs();
-    /// let abs_difference_y = (y.abs_sub(1.0) - 0.0).abs();
-    ///
-    /// assert!(abs_difference_x < 1e-10);
-    /// assert!(abs_difference_y < 1e-10);
-    /// ```
-    fn abs_sub(self, other: Self) -> Self;
-
-    /// Take the cubic root of a number.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 8.0;
-    ///
-    /// // x^(1/3) - 2 == 0
-    /// let abs_difference = (x.cbrt() - 2.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn cbrt(self) -> Self;
-
-    /// Calculate the length of the hypotenuse of a right-angle triangle given
-    /// legs of length `x` and `y`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 2.0;
-    /// let y = 3.0;
-    ///
-    /// // sqrt(x^2 + y^2)
-    /// let abs_difference = (x.hypot(y) - (x.powi(2) + y.powi(2)).sqrt()).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn hypot(self, other: Self) -> Self;
-
-    /// Computes the sine of a number (in radians).
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x = f64::consts::PI/2.0;
-    ///
-    /// let abs_difference = (x.sin() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn sin(self) -> Self;
-
-    /// Computes the cosine of a number (in radians).
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x = 2.0*f64::consts::PI;
-    ///
-    /// let abs_difference = (x.cos() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn cos(self) -> Self;
-
-    /// Computes the tangent of a number (in radians).
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x = f64::consts::PI/4.0;
-    /// let abs_difference = (x.tan() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-14);
-    /// ```
-    fn tan(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].
-    ///
-    /// # Panics
-    ///
-    /// If this type does not support a NaN representation, this function should panic
-    /// if the number is outside the range [-1, 1].
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let f = f64::consts::PI / 2.0;
-    ///
-    /// // asin(sin(pi/2))
-    /// let abs_difference = (f.sin().asin() - f64::consts::PI / 2.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn asin(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].
-    ///
-    /// # Panics
-    ///
-    /// If this type does not support a NaN representation, this function should panic
-    /// if the number is outside the range [-1, 1].
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let f = f64::consts::PI / 4.0;
-    ///
-    /// // acos(cos(pi/4))
-    /// let abs_difference = (f.cos().acos() - f64::consts::PI / 4.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn acos(self) -> Self;
-
-    /// Computes the arctangent of a number. Return value is in radians in the
-    /// range [-pi/2, pi/2];
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let f = 1.0;
-    ///
-    /// // atan(tan(1))
-    /// let abs_difference = (f.tan().atan() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn atan(self) -> Self;
-
-    /// Computes the four quadrant arctangent of `self` (`y`) and `other` (`x`).
-    ///
-    /// * `x = 0`, `y = 0`: `0`
-    /// * `x >= 0`: `arctan(y/x)` -> `[-pi/2, pi/2]`
-    /// * `y >= 0`: `arctan(y/x) + pi` -> `(pi/2, pi]`
-    /// * `y < 0`: `arctan(y/x) - pi` -> `(-pi, -pi/2)`
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let pi = f64::consts::PI;
-    /// // All angles from horizontal right (+x)
-    /// // 45 deg counter-clockwise
-    /// let x1 = 3.0;
-    /// let y1 = -3.0;
-    ///
-    /// // 135 deg clockwise
-    /// let x2 = -3.0;
-    /// let y2 = 3.0;
-    ///
-    /// let abs_difference_1 = (y1.atan2(x1) - (-pi/4.0)).abs();
-    /// let abs_difference_2 = (y2.atan2(x2) - 3.0*pi/4.0).abs();
-    ///
-    /// assert!(abs_difference_1 < 1e-10);
-    /// assert!(abs_difference_2 < 1e-10);
-    /// ```
-    fn atan2(self, other: Self) -> Self;
-
-    /// Simultaneously computes the sine and cosine of the number, `x`. Returns
-    /// `(sin(x), cos(x))`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x = f64::consts::PI/4.0;
-    /// let f = x.sin_cos();
-    ///
-    /// let abs_difference_0 = (f.0 - x.sin()).abs();
-    /// let abs_difference_1 = (f.1 - x.cos()).abs();
-    ///
-    /// assert!(abs_difference_0 < 1e-10);
-    /// assert!(abs_difference_0 < 1e-10);
-    /// ```
-    fn sin_cos(self) -> (Self, Self);
-
-    /// Returns `e^(self) - 1` in a way that is accurate even if the
-    /// number is close to zero.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 7.0;
-    ///
-    /// // e^(ln(7)) - 1
-    /// let abs_difference = (x.ln().exp_m1() - 6.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn exp_m1(self) -> Self;
-
-    /// Returns `ln(1+n)` (natural logarithm) more accurately than if
-    /// the operations were performed separately.
-    ///
-    /// # Panics
-    ///
-    /// If this type does not support a NaN representation, this function should panic
-    /// if `self-1 <= 0`.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let x = f64::consts::E - 1.0;
-    ///
-    /// // ln(1 + (e - 1)) == ln(e) == 1
-    /// let abs_difference = (x.ln_1p() - 1.0).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn ln_1p(self) -> Self;
-
-    /// Hyperbolic sine function.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let e = f64::consts::E;
-    /// let x = 1.0;
-    ///
-    /// let f = x.sinh();
-    /// // Solving sinh() at 1 gives `(e^2-1)/(2e)`
-    /// let g = (e*e - 1.0)/(2.0*e);
-    /// let abs_difference = (f - g).abs();
-    ///
-    /// assert!(abs_difference < 1e-10);
-    /// ```
-    fn sinh(self) -> Self;
-
-    /// Hyperbolic cosine function.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let e = f64::consts::E;
-    /// let x = 1.0;
-    /// let f = x.cosh();
-    /// // Solving cosh() at 1 gives this result
-    /// let g = (e*e + 1.0)/(2.0*e);
-    /// let abs_difference = (f - g).abs();
-    ///
-    /// // Same result
-    /// assert!(abs_difference < 1.0e-10);
-    /// ```
-    fn cosh(self) -> Self;
-
-    /// Hyperbolic tangent function.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let e = f64::consts::E;
-    /// let x = 1.0;
-    ///
-    /// let f = x.tanh();
-    /// // Solving tanh() at 1 gives `(1 - e^(-2))/(1 + e^(-2))`
-    /// let g = (1.0 - e.powi(-2))/(1.0 + e.powi(-2));
-    /// let abs_difference = (f - g).abs();
-    ///
-    /// assert!(abs_difference < 1.0e-10);
-    /// ```
-    fn tanh(self) -> Self;
-
-    /// Inverse hyperbolic sine function.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 1.0;
-    /// let f = x.sinh().asinh();
-    ///
-    /// let abs_difference = (f - x).abs();
-    ///
-    /// assert!(abs_difference < 1.0e-10);
-    /// ```
-    fn asinh(self) -> Self;
-
-    /// Inverse hyperbolic cosine function.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    ///
-    /// let x = 1.0;
-    /// let f = x.cosh().acosh();
-    ///
-    /// let abs_difference = (f - x).abs();
-    ///
-    /// assert!(abs_difference < 1.0e-10);
-    /// ```
-    fn acosh(self) -> Self;
-
-    /// Inverse hyperbolic tangent function.
-    ///
-    /// ```
-    /// use num_traits::real::Real;
-    /// use std::f64;
-    ///
-    /// let e = f64::consts::E;
-    /// let f = e.tanh().atanh();
-    ///
-    /// let abs_difference = (f - e).abs();
-    ///
-    /// assert!(abs_difference < 1.0e-10);
-    /// ```
-    fn atanh(self) -> Self;
-}
-
-impl<T: Float> Real for T {
-    forward! {
-        Float::min_value() -> Self;
-        Float::min_positive_value() -> Self;
-        Float::epsilon() -> Self;
-        Float::max_value() -> Self;
-    }
-    forward! {
-        Float::floor(self) -> Self;
-        Float::ceil(self) -> Self;
-        Float::round(self) -> Self;
-        Float::trunc(self) -> Self;
-        Float::fract(self) -> Self;
-        Float::abs(self) -> Self;
-        Float::signum(self) -> Self;
-        Float::is_sign_positive(self) -> bool;
-        Float::is_sign_negative(self) -> bool;
-        Float::mul_add(self, a: Self, b: Self) -> Self;
-        Float::recip(self) -> Self;
-        Float::powi(self, n: i32) -> Self;
-        Float::powf(self, n: Self) -> Self;
-        Float::sqrt(self) -> Self;
-        Float::exp(self) -> Self;
-        Float::exp2(self) -> Self;
-        Float::ln(self) -> Self;
-        Float::log(self, base: Self) -> Self;
-        Float::log2(self) -> Self;
-        Float::log10(self) -> Self;
-        Float::to_degrees(self) -> Self;
-        Float::to_radians(self) -> Self;
-        Float::max(self, other: Self) -> Self;
-        Float::min(self, other: Self) -> Self;
-        Float::abs_sub(self, other: Self) -> Self;
-        Float::cbrt(self) -> Self;
-        Float::hypot(self, other: Self) -> Self;
-        Float::sin(self) -> Self;
-        Float::cos(self) -> Self;
-        Float::tan(self) -> Self;
-        Float::asin(self) -> Self;
-        Float::acos(self) -> Self;
-        Float::atan(self) -> Self;
-        Float::atan2(self, other: Self) -> Self;
-        Float::sin_cos(self) -> (Self, Self);
-        Float::exp_m1(self) -> Self;
-        Float::ln_1p(self) -> Self;
-        Float::sinh(self) -> Self;
-        Float::cosh(self) -> Self;
-        Float::tanh(self) -> Self;
-        Float::asinh(self) -> Self;
-        Float::acosh(self) -> Self;
-        Float::atanh(self) -> Self;
-    }
-}