Struct ramp::rational::Rational [−] [src]

pub struct Rational {
    // some fields omitted
}

An arbitrary-precision rational number.

This type is used to represent numbers in the form a / b where a and b are integers and b is non-zero.

Methods

`impl Rational`
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`fn abs(self) -> Rational`

Returns the absolute value of this Rational

`fn new(n: Int, d: Int) -> Rational`

`fn normalized(&self) -> bool`

Returns whether or not this rational is normalized or not

`fn normalize(&mut self)`

Normalize this Rational.

This method will cause the value to be represented in the form a/b where a and b are relatively prime. It also ensures that the denominator is positive.

Normalizing rationals will result in faster calculations as it ensures that the numerator and denominator are as small as they can be.

`fn invert(self) -> Rational`

Returns the reciprocal of this Rational

`fn round(self) -> Int`

Returns this Rational to the nearest Int

`fn sign(&self) -> i32`

Returns the sign of the Int as either -1, 0 or 1 for self being negative, zero or positive, respectively.

`fn to_f64(&self) -> f64`

Converts this Rational to an f64 value.

Trait Implementations

`impl Clone for Rational`
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`fn clone(&self) -> Rational`

Returns a copy of the value. Read more

`fn clone_from(&mut self, other: &Rational)`

Performs copy-assignment from source. Read more

`impl Default for Rational`
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`fn default() -> Rational`

Returns the "default value" for a type. Read more

`impl PartialEq<Rational> for Rational`
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`fn eq(&self, other: &Rational) -> bool`

This method tests for self and other values to be equal, and is used by ==. Read more

`fn ne(&self, other: &Rhs) -> bool`
1.0.0

This method tests for !=.

`impl PartialEq<Int> for Rational`
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`fn eq(&self, other: &Int) -> bool`

This method tests for self and other values to be equal, and is used by ==. Read more

`fn ne(&self, other: &Rhs) -> bool`
1.0.0

This method tests for !=.

`impl Eq for Rational`
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`impl Ord for Rational`
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`fn cmp(&self, other: &Rational) -> Ordering`

This method returns an Ordering between self and other. Read more

`impl PartialOrd<Rational> for Rational`
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`fn partial_cmp(&self, other: &Rational) -> Option<Ordering>`

This method returns an ordering between self and other values if one exists. Read more

`fn lt(&self, other: &Rhs) -> bool`
1.0.0

This method tests less than (for self and other) and is used by the < operator. Read more

`fn le(&self, other: &Rhs) -> bool`
1.0.0

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

`fn gt(&self, other: &Rhs) -> bool`
1.0.0

This method tests greater than (for self and other) and is used by the > operator. Read more

`fn ge(&self, other: &Rhs) -> bool`
1.0.0

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

`impl PartialOrd<Int> for Rational`
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`fn partial_cmp(&self, other: &Int) -> Option<Ordering>`

This method returns an ordering between self and other values if one exists. Read more

`fn lt(&self, other: &Rhs) -> bool`
1.0.0

This method tests less than (for self and other) and is used by the < operator. Read more

`fn le(&self, other: &Rhs) -> bool`
1.0.0

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

`fn gt(&self, other: &Rhs) -> bool`
1.0.0

This method tests greater than (for self and other) and is used by the > operator. Read more

`fn ge(&self, other: &Rhs) -> bool`
1.0.0

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

`impl Hash for Rational`
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`fn hash<H>(&self, state: &mut H) where H: Hasher`

Feeds this value into the state given, updating the hasher as necessary.

`fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher`
1.3.0

Feeds a slice of this type into the state provided.

`impl AddAssign<Rational> for Rational`
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`fn add_assign(&mut self, other: Rational)`

The method for the += operator

`impl<'a> AddAssign<&'a Rational> for Rational`
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`fn add_assign(&mut self, other: &'a Rational)`

The method for the += operator

`impl AddAssign<Int> for Rational`
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`fn add_assign(&mut self, other: Int)`

The method for the += operator

`impl<'a> AddAssign<&'a Int> for Rational`
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`fn add_assign(&mut self, other: &'a Int)`

The method for the += operator

`impl Add<Rational> for Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: Rational) -> Rational`

The method for the + operator

`impl<'a> Add<&'a Rational> for Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: &'a Rational) -> Rational`

The method for the + operator

`impl<'a> Add<Rational> for &'a Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: Rational) -> Rational`

The method for the + operator

`impl<'a> Add<&'a Rational> for &'a Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: &'a Rational) -> Rational`

The method for the + operator

`impl Add<Int> for Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: Int) -> Rational`

The method for the + operator

`impl<'a> Add<&'a Int> for Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: &'a Int) -> Rational`

The method for the + operator

`impl<'a> Add<Int> for &'a Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: Int) -> Rational`

The method for the + operator

`impl<'a> Add<&'a Int> for &'a Rational`
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`type Output = Rational`

The resulting type after applying the + operator

`fn add(self, other: &'a Int) -> Rational`

The method for the + operator

`impl SubAssign<Rational> for Rational`
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`fn sub_assign(&mut self, other: Rational)`

The method for the -= operator

`impl<'a> SubAssign<&'a Rational> for Rational`
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`fn sub_assign(&mut self, other: &'a Rational)`

The method for the -= operator

`impl Sub<Rational> for Rational`
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`type Output = Rational`

The resulting type after applying the - operator

`fn sub(self, other: Rational) -> Rational`

The method for the - operator

`impl<'a> Sub<&'a Rational> for Rational`
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`type Output = Rational`

The resulting type after applying the - operator

`fn sub(self, other: &'a Rational) -> Rational`

The method for the - operator

`impl<'a> Sub<Rational> for &'a Rational`
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`type Output = Rational`

The resulting type after applying the - operator

`fn sub(self, other: Rational) -> Rational`

The method for the - operator

`impl<'a> Sub<&'a Rational> for &'a Rational`
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`type Output = Rational`

The resulting type after applying the - operator

`fn sub(self, other: &'a Rational) -> Rational`

The method for the - operator

`impl<'a> MulAssign<&'a Rational> for Rational`
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`fn mul_assign(&mut self, other: &'a Rational)`

The method for the *= operator

`impl MulAssign<Rational> for Rational`
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`fn mul_assign(&mut self, other: Rational)`

The method for the *= operator

`impl MulAssign<Int> for Rational`
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`fn mul_assign(&mut self, other: Int)`

The method for the *= operator

`impl<'a> MulAssign<&'a Int> for Rational`
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