Trait nom::lib::std::ops::Div 1.0.0[−][src]
#[lang = "div"] pub trait Div<Rhs = Self> { type Output; #[must_use] pub fn div(self, rhs: Rhs) -> Self::Output; }
The division operator /
.
Note that Rhs
is Self
by default, but this is not mandatory.
Examples
Div
idable rational numbers
use std::ops::Div; // By the fundamental theorem of arithmetic, rational numbers in lowest // terms are unique. So, by keeping `Rational`s in reduced form, we can // derive `Eq` and `PartialEq`. #[derive(Debug, Eq, PartialEq)] struct Rational { numerator: usize, denominator: usize, } impl Rational { fn new(numerator: usize, denominator: usize) -> Self { if denominator == 0 { panic!("Zero is an invalid denominator!"); } // Reduce to lowest terms by dividing by the greatest common // divisor. let gcd = gcd(numerator, denominator); Self { numerator: numerator / gcd, denominator: denominator / gcd, } } } impl Div for Rational { // The division of rational numbers is a closed operation. type Output = Self; fn div(self, rhs: Self) -> Self::Output { if rhs.numerator == 0 { panic!("Cannot divide by zero-valued `Rational`!"); } let numerator = self.numerator * rhs.denominator; let denominator = self.denominator * rhs.numerator; Self::new(numerator, denominator) } } // Euclid's two-thousand-year-old algorithm for finding the greatest common // divisor. fn gcd(x: usize, y: usize) -> usize { let mut x = x; let mut y = y; while y != 0 { let t = y; y = x % y; x = t; } x } assert_eq!(Rational::new(1, 2), Rational::new(2, 4)); assert_eq!(Rational::new(1, 2) / Rational::new(3, 4), Rational::new(2, 3));
Dividing vectors by scalars as in linear algebra
use std::ops::Div; struct Scalar { value: f32 } #[derive(Debug, PartialEq)] struct Vector { value: Vec<f32> } impl Div<Scalar> for Vector { type Output = Self; fn div(self, rhs: Scalar) -> Self::Output { Self { value: self.value.iter().map(|v| v / rhs.value).collect() } } } let scalar = Scalar { value: 2f32 }; let vector = Vector { value: vec![2f32, 4f32, 6f32] }; assert_eq!(vector / scalar, Vector { value: vec![1f32, 2f32, 3f32] });
Associated Types
Required methods
Implementations on Foreign Types
impl<'_, '_> Div<&'_ Wrapping<i8>> for &'_ Wrapping<i8>
[src][−]
type Output = <Wrapping<i8> as Div<Wrapping<i8>>>::Output
pub fn div(
self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Div<Wrapping<i8>>>::Output
[src]
self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Div<Wrapping<i8>>>::Output
impl<'_, '_> Div<&'_ Wrapping<isize>> for &'_ Wrapping<isize>
[src][−]
type Output = <Wrapping<isize> as Div<Wrapping<isize>>>::Output
pub fn div(
self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Div<Wrapping<isize>>>::Output
[src]
self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Div<Wrapping<isize>>>::Output
impl Div<Wrapping<i128>> for Wrapping<i128>
[src][−]
impl<'_> Div<&'_ Wrapping<u64>> for Wrapping<u64>
[src][−]
type Output = <Wrapping<u64> as Div<Wrapping<u64>>>::Output
pub fn div(
self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Div<Wrapping<u64>>>::Output
[src]
self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Div<Wrapping<u64>>>::Output
impl Div<Wrapping<i64>> for Wrapping<i64>
[src][−]
impl Div<Wrapping<u32>> for Wrapping<u32>
[src][−]
impl<'_, '_> Div<&'_ Wrapping<u8>> for &'_ Wrapping<u8>
[src][−]
type Output = <Wrapping<u8> as Div<Wrapping<u8>>>::Output
pub fn div(
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Div<Wrapping<u8>>>::Output
[src]
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Div<Wrapping<u8>>>::Output
impl Div<Wrapping<usize>> for Wrapping<usize>
[src][−]
impl<'_> Div<&'_ Wrapping<u8>> for Wrapping<u8>
[src][−]
type Output = <Wrapping<u8> as Div<Wrapping<u8>>>::Output
pub fn div(
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Div<Wrapping<u8>>>::Output
[src]
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Div<Wrapping<u8>>>::Output
impl Div<Wrapping<u64>> for Wrapping<u64>
[src][−]
impl Div<Wrapping<i8>> for Wrapping<i8>
[src][−]
impl Div<Wrapping<u128>> for Wrapping<u128>
[src][−]
impl Div<Wrapping<i32>> for Wrapping<i32>
[src][−]
impl<'_, '_> Div<&'_ Wrapping<u128>> for &'_ Wrapping<u128>
[src][−]
type Output = <Wrapping<u128> as Div<Wrapping<u128>>>::Output
pub fn div(
self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Div<Wrapping<u128>>>::Output
[src]
self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Div<Wrapping<u128>>>::Output
impl<'a> Div<Wrapping<usize>> for &'a Wrapping<usize>
[src][−]
type Output = <Wrapping<usize> as Div<Wrapping<usize>>>::Output
pub fn div(
self,
other: Wrapping<usize>
) -> <Wrapping<usize> as Div<Wrapping<usize>>>::Output
[src]
self,
other: Wrapping<usize>
) -> <Wrapping<usize> as Div<Wrapping<usize>>>::Output
impl<'a> Div<Wrapping<i64>> for &'a Wrapping<i64>
[src][−]
type Output = <Wrapping<i64> as Div<Wrapping<i64>>>::Output
pub fn div(
self,
other: Wrapping<i64>
) -> <Wrapping<i64> as Div<Wrapping<i64>>>::Output
[src]
self,
other: Wrapping<i64>
) -> <Wrapping<i64> as Div<Wrapping<i64>>>::Output
impl<'_, '_> Div<&'_ Wrapping<u16>> for &'_ Wrapping<u16>
[src][−]
type Output = <Wrapping<u16> as Div<Wrapping<u16>>>::Output
pub fn div(
self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Div<Wrapping<u16>>>::Output
[src]
self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Div<Wrapping<u16>>>::Output
impl<'_> Div<&'_ Wrapping<i8>> for Wrapping<i8>
[src][−]
type Output = <Wrapping<i8> as Div<Wrapping<i8>>>::Output
pub fn div(
self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Div<Wrapping<i8>>>::Output
[src]
self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Div<Wrapping<i8>>>::Output
impl<'a> Div<Wrapping<u128>> for &'a Wrapping<u128>
[src][−]
type Output = <Wrapping<u128> as Div<Wrapping<u128>>>::Output
pub fn div(
self,
other: Wrapping<u128>
) -> <Wrapping<u128> as Div<Wrapping<u128>>>::Output
[src]
self,
other: Wrapping<u128>
) -> <Wrapping<u128> as Div<Wrapping<u128>>>::Output
impl Div<Wrapping<i16>> for Wrapping<i16>
[src][−]
impl<'_> Div<&'_ Wrapping<u128>> for Wrapping<u128>
[src][−]
type Output = <Wrapping<u128> as Div<Wrapping<u128>>>::Output
pub fn div(
self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Div<Wrapping<u128>>>::Output
[src]
self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Div<Wrapping<u128>>>::Output
impl<'_> Div<&'_ Wrapping<i128>> for Wrapping<i128>
[src][−]
type Output = <Wrapping<i128> as Div<Wrapping<i128>>>::Output
pub fn div(
self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Div<Wrapping<i128>>>::Output
[src]
self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Div<Wrapping<i128>>>::Output
impl<'a> Div<Wrapping<u32>> for &'a Wrapping<u32>
[src][−]
type Output = <Wrapping<u32> as Div<Wrapping<u32>>>::Output
pub fn div(
self,
other: Wrapping<u32>
) -> <Wrapping<u32> as Div<Wrapping<u32>>>::Output
[src]
self,
other: Wrapping<u32>
) -> <Wrapping<u32> as Div<Wrapping<u32>>>::Output
impl<'a> Div<Wrapping<i128>> for &'a Wrapping<i128>
[src][−]
type Output = <Wrapping<i128> as Div<Wrapping<i128>>>::Output
pub fn div(
self,
other: Wrapping<i128>
) -> <Wrapping<i128> as Div<Wrapping<i128>>>::Output
[src]
self,
other: Wrapping<i128>
) -> <Wrapping<i128> as Div<Wrapping<i128>>>::Output
impl<'a> Div<Wrapping<i32>> for &'a Wrapping<i32>
[src][−]
type Output = <Wrapping<i32> as Div<Wrapping<i32>>>::Output
pub fn div(
self,
other: Wrapping<i32>
) -> <Wrapping<i32> as Div<Wrapping<i32>>>::Output
[src]
self,
other: Wrapping<i32>
) -> <Wrapping<i32> as Div<Wrapping<i32>>>::Output
impl<'_, '_> Div<&'_ Wrapping<u64>> for &'_ Wrapping<u64>
[src][−]
type Output = <Wrapping<u64> as Div<Wrapping<u64>>>::Output
pub fn div(
self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Div<Wrapping<u64>>>::Output
[src]
self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Div<Wrapping<u64>>>::Output
impl<'_> Div<&'_ Wrapping<i16>> for Wrapping<i16>
[src][−]
type Output = <Wrapping<i16> as Div<Wrapping<i16>>>::Output
pub fn div(
self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Div<Wrapping<i16>>>::Output
[src]
self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Div<Wrapping<i16>>>::Output
impl<'_> Div<&'_ Wrapping<isize>> for Wrapping<isize>
[src][−]
type Output = <Wrapping<isize> as Div<Wrapping<isize>>>::Output
pub fn div(
self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Div<Wrapping<isize>>>::Output
[src]
self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Div<Wrapping<isize>>>::Output
impl<'a> Div<Wrapping<isize>> for &'a Wrapping<isize>
[src][−]
type Output = <Wrapping<isize> as Div<Wrapping<isize>>>::Output
pub fn div(
self,
other: Wrapping<isize>
) -> <Wrapping<isize> as Div<Wrapping<isize>>>::Output
[src]
self,
other: Wrapping<isize>
) -> <Wrapping<isize> as Div<Wrapping<isize>>>::Output
impl<'_, '_> Div<&'_ Wrapping<i64>> for &'_ Wrapping<i64>
[src][−]
type Output = <Wrapping<i64> as Div<Wrapping<i64>>>::Output
pub fn div(
self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Div<Wrapping<i64>>>::Output
[src]
self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Div<Wrapping<i64>>>::Output
impl<'a> Div<Wrapping<u64>> for &'a Wrapping<u64>
[src][−]
type Output = <Wrapping<u64> as Div<Wrapping<u64>>>::Output
pub fn div(
self,
other: Wrapping<u64>
) -> <Wrapping<u64> as Div<Wrapping<u64>>>::Output
[src]
self,
other: Wrapping<u64>
) -> <Wrapping<u64> as Div<Wrapping<u64>>>::Output
impl Div<Wrapping<u8>> for Wrapping<u8>
[src][−]
impl<'_> Div<&'_ Wrapping<u16>> for Wrapping<u16>
[src][−]
type Output = <Wrapping<u16> as Div<Wrapping<u16>>>::Output
pub fn div(
self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Div<Wrapping<u16>>>::Output
[src]
self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Div<Wrapping<u16>>>::Output
impl<'_> Div<&'_ Wrapping<i32>> for Wrapping<i32>
[src][−]
type Output = <Wrapping<i32> as Div<Wrapping<i32>>>::Output
pub fn div(
self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Div<Wrapping<i32>>>::Output
[src]
self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Div<Wrapping<i32>>>::Output
impl<'_> Div<&'_ Wrapping<usize>> for Wrapping<usize>
[src][−]
type Output = <Wrapping<usize> as Div<Wrapping<usize>>>::Output
pub fn div(
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Div<Wrapping<usize>>>::Output
[src]
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Div<Wrapping<usize>>>::Output
impl<'_, '_> Div<&'_ Wrapping<i16>> for &'_ Wrapping<i16>
[src][−]
type Output = <Wrapping<i16> as Div<Wrapping<i16>>>::Output
pub fn div(
self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Div<Wrapping<i16>>>::Output
[src]
self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Div<Wrapping<i16>>>::Output
impl<'_, '_> Div<&'_ Wrapping<i32>> for &'_ Wrapping<i32>
[src][−]
type Output = <Wrapping<i32> as Div<Wrapping<i32>>>::Output
pub fn div(
self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Div<Wrapping<i32>>>::Output
[src]
self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Div<Wrapping<i32>>>::Output
impl<'_, '_> Div<&'_ Wrapping<usize>> for &'_ Wrapping<usize>
[src][−]
type Output = <Wrapping<usize> as Div<Wrapping<usize>>>::Output
pub fn div(
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Div<Wrapping<usize>>>::Output
[src]
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Div<Wrapping<usize>>>::Output
impl Div<Wrapping<u16>> for Wrapping<u16>
[src][−]
impl<'_> Div<&'_ Wrapping<u32>> for Wrapping<u32>
[src][−]
type Output = <Wrapping<u32> as Div<Wrapping<u32>>>::Output
pub fn div(
self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Div<Wrapping<u32>>>::Output
[src]
self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Div<Wrapping<u32>>>::Output
impl<'_, '_> Div<&'_ Wrapping<i128>> for &'_ Wrapping<i128>
[src][−]
type Output = <Wrapping<i128> as Div<Wrapping<i128>>>::Output
pub fn div(
self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Div<Wrapping<i128>>>::Output
[src]
self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Div<Wrapping<i128>>>::Output
impl<'a> Div<Wrapping<i16>> for &'a Wrapping<i16>
[src][−]
type Output = <Wrapping<i16> as Div<Wrapping<i16>>>::Output
pub fn div(
self,
other: Wrapping<i16>
) -> <Wrapping<i16> as Div<Wrapping<i16>>>::Output
[src]
self,
other: Wrapping<i16>
) -> <Wrapping<i16> as Div<Wrapping<i16>>>::Output
impl<'a> Div<Wrapping<u16>> for &'a Wrapping<u16>
[src][−]
type Output = <Wrapping<u16> as Div<Wrapping<u16>>>::Output
pub fn div(
self,
other: Wrapping<u16>
) -> <Wrapping<u16> as Div<Wrapping<u16>>>::Output
[src]
self,
other: Wrapping<u16>
) -> <Wrapping<u16> as Div<Wrapping<u16>>>::Output
impl<'_, '_> Div<&'_ Wrapping<u32>> for &'_ Wrapping<u32>
[src][−]
type Output = <Wrapping<u32> as Div<Wrapping<u32>>>::Output
pub fn div(
self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Div<Wrapping<u32>>>::Output
[src]
self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Div<Wrapping<u32>>>::Output
impl Div<Wrapping<isize>> for Wrapping<isize>
[src][−]
impl<'a> Div<Wrapping<u8>> for &'a Wrapping<u8>
[src][−]
type Output = <Wrapping<u8> as Div<Wrapping<u8>>>::Output
pub fn div(
self,
other: Wrapping<u8>
) -> <Wrapping<u8> as Div<Wrapping<u8>>>::Output
[src]
self,
other: Wrapping<u8>
) -> <Wrapping<u8> as Div<Wrapping<u8>>>::Output
impl Div<u32> for Duration
[src][−]
impl<'a> Div<Wrapping<i8>> for &'a Wrapping<i8>
[src][−]
type Output = <Wrapping<i8> as Div<Wrapping<i8>>>::Output
pub fn div(
self,
other: Wrapping<i8>
) -> <Wrapping<i8> as Div<Wrapping<i8>>>::Output
[src]
self,
other: Wrapping<i8>
) -> <Wrapping<i8> as Div<Wrapping<i8>>>::Output
impl<'_> Div<&'_ Wrapping<i64>> for Wrapping<i64>
[src][−]
type Output = <Wrapping<i64> as Div<Wrapping<i64>>>::Output
pub fn div(
self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Div<Wrapping<i64>>>::Output
[src]
self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Div<Wrapping<i64>>>::Output
Implementors
impl Div<NonZeroU8> for u8
1.51.0[src][+]
impl Div<NonZeroU16> for u16
1.51.0[src][+]
impl Div<NonZeroU32> for u32
1.51.0[src][+]
impl Div<NonZeroU64> for u64
1.51.0[src][+]
impl Div<NonZeroU128> for u128
1.51.0[src][+]
impl Div<NonZeroUsize> for usize
1.51.0[src][+]
impl Div<f32> for f32
[src][+]
impl Div<f64> for f64
[src][+]
impl Div<i8> for i8
[src][+]
impl Div<i16> for i16
[src][+]
impl Div<i32> for i32
[src][+]
impl Div<i64> for i64
[src][+]
impl Div<i128> for i128
[src][+]
impl Div<isize> for isize
[src][+]
impl Div<u8> for u8
[src][+]
impl Div<u16> for u16
[src][+]
impl Div<u32> for u32
[src][+]
impl Div<u64> for u64
[src][+]
impl Div<u128> for u128
[src][+]
impl Div<usize> for usize
[src][+]
impl<'_> Div<&'_ f32> for f32
[src][+]
impl<'_> Div<&'_ f64> for f64
[src][+]
impl<'_> Div<&'_ i8> for i8
[src][+]
impl<'_> Div<&'_ i16> for i16
[src][+]
impl<'_> Div<&'_ i32> for i32
[src][+]
impl<'_> Div<&'_ i64> for i64
[src][+]
impl<'_> Div<&'_ i128> for i128
[src][+]
impl<'_> Div<&'_ isize> for isize
[src][+]
impl<'_> Div<&'_ u8> for u8
[src][+]
impl<'_> Div<&'_ u16> for u16
[src][+]
impl<'_> Div<&'_ u32> for u32
[src][+]
impl<'_> Div<&'_ u64> for u64
[src][+]
impl<'_> Div<&'_ u128> for u128
[src][+]
impl<'_> Div<&'_ usize> for usize
[src][+]
impl<'_, '_> Div<&'_ f32> for &'_ f32
[src][+]
impl<'_, '_> Div<&'_ f64> for &'_ f64
[src][+]
impl<'_, '_> Div<&'_ i8> for &'_ i8
[src][+]
impl<'_, '_> Div<&'_ i16> for &'_ i16
[src][+]
impl<'_, '_> Div<&'_ i32> for &'_ i32
[src][+]
impl<'_, '_> Div<&'_ i64> for &'_ i64
[src][+]
impl<'_, '_> Div<&'_ i128> for &'_ i128
[src][+]
impl<'_, '_> Div<&'_ isize> for &'_ isize
[src][+]
impl<'_, '_> Div<&'_ u8> for &'_ u8
[src][+]
impl<'_, '_> Div<&'_ u16> for &'_ u16
[src][+]
impl<'_, '_> Div<&'_ u32> for &'_ u32
[src][+]
impl<'_, '_> Div<&'_ u64> for &'_ u64
[src][+]
impl<'_, '_> Div<&'_ u128> for &'_ u128
[src][+]
impl<'_, '_> Div<&'_ usize> for &'_ usize
[src][+]
impl<'a> Div<f32> for &'a f32
[src][+]
impl<'a> Div<f64> for &'a f64
[src][+]
impl<'a> Div<i8> for &'a i8
[src][+]
impl<'a> Div<i16> for &'a i16
[src][+]
impl<'a> Div<i32> for &'a i32
[src][+]
impl<'a> Div<i64> for &'a i64
[src][+]
impl<'a> Div<i128> for &'a i128
[src][+]
impl<'a> Div<isize> for &'a isize
[src][+]
impl<'a> Div<u8> for &'a u8
[src][+]
impl<'a> Div<u16> for &'a u16
[src][+]
impl<'a> Div<u32> for &'a u32
[src][+]
impl<'a> Div<u64> for &'a u64
[src][+]
impl<'a> Div<u128> for &'a u128
[src][+]
impl<'a> Div<usize> for &'a usize
[src][+]
impl Div<i32> for TimeSpec
impl Div<i32> for TimeSpec
impl Div<i32> for TimeVal
impl Div<i32> for TimeVal
impl<'a, 'b, T: Clone + Integer> Div<&'b Ratio<T>> for &'a Ratio<T>
impl<'a, 'b, T: Clone + Integer> Div<&'b Ratio<T>> for &'a Ratio<T>
impl<'a, 'b, T: Clone + Integer> Div<&'b T> for &'a Ratio<T>
impl<'a, 'b, T: Clone + Integer> Div<&'b T> for &'a Ratio<T>
impl<'a, T> Div<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<T> for &'a Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<T> for &'a Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<&'a T> for Ratio<T> where
T: Clone + Integer,
impl<'a, T> Div<&'a T> for Ratio<T> where
T: Clone + Integer,
impl<T> Div<Ratio<T>> for Ratio<T> where
T: Clone + Integer,
impl<T> Div<Ratio<T>> for Ratio<T> where
T: Clone + Integer,
impl<T> Div<T> for Ratio<T> where
T: Clone + Integer,
impl<T> Div<T> for Ratio<T> where
T: Clone + Integer,
impl Div<f32> for Vector<f32>
impl Div<f32> for Vector<f32>
impl Div<f64> for Vector<f64>
impl Div<f64> for Vector<f64>