[−][src]Struct floating_bar::r64
The 64-bit floating bar type.
Implementations
impl r64
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pub fn numer(self) -> u64
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Returns the numerator value for this rational number.
pub fn denom(self) -> u64
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Returns the denominator value for this rational number.
pub fn floor(self) -> r64
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Returns the largest integer less than or equal to a number.
pub fn ceil(self) -> r64
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Returns the smallest integer greater than or equal to a number.
pub fn round(self) -> r64
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Returns the nearest integer to a number. Round half-way cases away from zero.
pub fn trunc(self) -> r64
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Returns the integer part of a number.
pub fn fract(self) -> r64
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Returns the fractional part of a number.
pub fn abs(self) -> r64
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Computes the absolute value of self
. Returns NaN if the number is NaN.
pub fn signum(self) -> r64
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Returns a number that represents the sign of self
.
1
if the number is positive-1
if the number is negative0
if the number is+0
,-0
, orNaN
pub fn pow(self, p: i32) -> r64
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Raises a number to an integer power.
pub fn checked_pow(self, p: i32) -> Option<r64>
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Raises a number to an integer power.
pub fn checked_sqrt(self) -> Option<r64>
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Takes the checked square root of a number.
If self
is positive and both the numerator and denominator are perfect
squares, this returns their square root. Otherwise, returns None
.
pub fn is_nan(self) -> bool
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Returns true
if this value is NaN
and false
otherwise.
pub fn is_normal(self) -> bool
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Returns true
if the number is neither zero, subnormal, or NaN
.
pub fn is_positive(self) -> bool
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Returns true
if and only if self
has a positive sign, including
+0.0
(but not NaNs with positive sign bit).
pub fn is_negative(self) -> bool
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Returns true
if and only if self has a negative sign, including
-0.0
(but not NaNs with negative sign bit).
pub fn recip(self) -> r64
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Takes the reciprocal (inverse) of a number, 1/x
.
Panics
Panics when trying to set a numerator of zero as denominator.
pub fn max(self, other: r64) -> r64
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Returns the maximum of the two numbers.
If one of the arguments is NaN
, then the other argument is returned.
pub fn min(self, other: r64) -> r64
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Returns the minimum of the two numbers.
If one of the arguments is NaN
, then the other argument is returned.
pub fn to_bits(self) -> u64
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Raw transmutation to u64
.
pub fn from_bits(bits: u64) -> r64
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Raw transmutation from u64
.
pub fn simplify(self) -> r64
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Cancels out common factors between the numerator and the denominator.
Trait Implementations
impl Add<r64> for r64
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type Output = r64
The resulting type after applying the +
operator.
fn add(self, other: r64) -> r64
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impl Clone for r64
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impl Copy for r64
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impl Debug for r64
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impl Default for r64
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impl Display for r64
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impl Div<r64> for r64
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type Output = r64
The resulting type after applying the /
operator.
fn div(self, other: r64) -> r64
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impl Eq for r64
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impl From<f32> for r64
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impl From<f64> for r64
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fn from(f: f64) -> Self
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Based on: https://www.johndcook.com/blog/2010/10/20/best-rational-approximation/
impl From<i16> for r64
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impl From<i32> for r64
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impl From<i8> for r64
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impl From<r32> for r64
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impl From<u16> for r64
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impl From<u32> for r64
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impl From<u8> for r64
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impl FromStr for r64
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type Err = ParseRatioErr
The associated error which can be returned from parsing.
fn from_str(src: &str) -> Result<Self, Self::Err>
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Converts a string in base 10 to a rational.
This function accepts strings such as
- '157/50'
- '-157/50'
- '25', or equivalently, '25/1'
- 'NaN'
Leading and trailing whitespace represent an error.
Return value
Err(ParseRatioError)
if the string did not represent a valid number.
Otherwise, Ok(n)
where n
is the floating-bar number represented by
src
.
impl Into<f32> for r64
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impl Into<f64> for r64
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impl Mul<r64> for r64
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type Output = r64
The resulting type after applying the *
operator.
fn mul(self, other: r64) -> r64
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impl Neg for r64
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type Output = r64
The resulting type after applying the -
operator.
fn neg(self) -> Self::Output
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impl PartialEq<r64> for r64
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impl PartialOrd<r64> for r64
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fn partial_cmp(&self, other: &r64) -> Option<Ordering>
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#[must_use]fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn gt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn ge(&self, other: &Rhs) -> bool
1.0.0[src]
impl Rem<r64> for r64
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type Output = r64
The resulting type after applying the %
operator.
fn rem(self, other: r64) -> r64
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impl StructuralEq for r64
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impl Sub<r64> for r64
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Auto Trait Implementations
impl RefUnwindSafe for r64
impl Send for r64
impl Sync for r64
impl Unpin for r64
impl UnwindSafe for r64
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,