Rational

numera::number::rational

Trait Rational 

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pub trait Rational: Number {
    // Required methods
    fn is_integer(&self) -> bool;
    fn is_proper(&self) -> bool;
    fn is_reduced(&self) -> bool;
    fn reduce(&mut self);
    fn reduced(&self) -> Self;
    fn invert(&mut self);
    fn inverted(&self) -> Self;

    // Provided methods
    fn is_improper(&self) -> bool { ... }
    fn is_reducible(&self) -> bool { ... }
    fn invert_reduce(&mut self) { ... }
    fn inverted_reduced(&self) -> Self
       where Self: Sized { ... }
}
Expand description

Common trait for all rationals.

Required Methods§

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fn is_integer(&self) -> bool

Is fraction an integer?

Retuns true if the denominator 1 or the numerator is a multiple of the denominator.

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fn is_proper(&self) -> bool

Is this a proper fraction (m) such that $a/b<1$?

Retuns true if the numerator is smaller than the denominator.

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fn is_reduced(&self) -> bool

Is this a reduced fraction (m).

Returns true if the numerator and denominator have no common factors other than 1.

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fn reduce(&mut self)

Reduces the fraction in place to its simplest form by dividing both the numerator and denominator by their greatest common divisor (GCD).

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fn reduced(&self) -> Self

Returns the reduced fraction to its simplest form by dividing both the numerator and denominator by their greatest common divisor (GCD).

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fn invert(&mut self)

Inverts the fraction in place by swapping the numerator and denominator, except in the case of 0, where it does nothing.

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fn inverted(&self) -> Self

Returns the inverted fraction by swapping the numerator and denominator, except in the case of 0, where it returns itself unchanged.

Provided Methods§

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fn is_improper(&self) -> bool

Is this an improper fraction (m) such that $a/b>1$?

Retuns true if the numerator is greater than the denominator.

E.g.: $ \dfrac{48}{23} , \dfrac{3}{2} … $

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fn is_reducible(&self) -> bool

Is this fraction not in its reduced mode (m)?

Returns true if the numerator and denominator share a common factor greater than 1, indicating that the fraction can be reduced further.

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fn invert_reduce(&mut self)

Inverts and reduces the fraction.

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fn inverted_reduced(&self) -> Self
where Self: Sized,

Returns the inverted and reduced fraction.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§