Struct Coef 

pub struct Coef {
    pub m: Rational,
    pub c: Rational,
}

A number of the form m·M + c, where M is the symbolic “big M” penalty.

Ordering is lexicographic (M dominates), which is exactly what the Big-M method needs without picking a numeric value for M. With m == 0 it is an ordinary rational.

With the serde feature it is {"m": "7", "c": "-4"} for 7M - 4.

Fields

m: Rational

Coefficient of M.

c: Rational

Constant part.

Implementations

impl Coef

pub fn zero() -> Self

pub fn constant(c: Rational) -> Self

pub fn big_m(m: Rational) -> Self

pub fn is_zero(&self) -> bool

pub fn is_negative(&self) -> bool

pub fn is_positive(&self) -> bool

Trait Implementations

impl Clone for Coef

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Coef

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Coef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Coef

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Coef

impl Neg for Coef

type Output = Coef

The resulting type after applying the - operator.

fn neg(self) -> Coef

Performs the unary - operation.

impl Ord for Coef

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Coef

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Coef

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Coef

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Coef