Trait ark_ff::fields::SquareRootField [−][src]
pub trait SquareRootField: Field { fn legendre(&self) -> LegendreSymbol; #[must_use] fn sqrt(&self) -> Option<Self>; fn sqrt_in_place(&mut self) -> Option<&mut Self>; }
Expand description
The interface for a field that supports an efficient square-root operation.
Required methods
fn legendre(&self) -> LegendreSymbol
[src]
fn legendre(&self) -> LegendreSymbol
[src]Returns a LegendreSymbol
, which indicates whether this field element is
1 : a quadratic residue
0 : equal to 0
-1 : a quadratic non-residue
fn sqrt_in_place(&mut self) -> Option<&mut Self>
[src]
fn sqrt_in_place(&mut self) -> Option<&mut Self>
[src]Sets self
to be the square root of self
, if it exists.
Implementors
impl<'a, P: QuadExtParameters> SquareRootField for QuadExtField<P> where
P::BaseField: SquareRootField,
[src]
impl<'a, P: QuadExtParameters> SquareRootField for QuadExtField<P> where
P::BaseField: SquareRootField,
[src]Returns the Legendre symbol.
Sets self
to be the square root of self
, if it exists.