Struct LineSearch

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pub struct LineSearch { /* private fields */ }

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impl LineSearch

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pub fn with_initial_step(self, stp: f64) -> Self

Set initial step size when performing line search. The default is 1.0.

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pub fn with_algorithm(self, s: &str) -> Self

Set line search algorithm. The default is MoreThuente algorithm.

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impl LineSearch

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pub fn find<E, T>(&self, m: usize, phi: E) -> bool
where E: FnMut(Input, &mut Output) -> Result<T>, T: Debug + Clone,

Perform line search with a callback function phi to evaluate function value and gradient projected onto search direction within m iterations

§Return

Return success or not within line search iteration.

Trait Implementations§

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impl Default for LineSearch

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for LineSearch

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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