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Sphere

forge_core::testfn

Struct Sphere 

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pub struct Sphere { /* private fields */ }
Expand description

Sphere: f(x) = Σ xᵢ². Convex, unimodal, minimum 0 at the origin.

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impl Sphere

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pub fn new(dim: usize) -> Self

dim-dimensional sphere on [-5.12, 5.12]^dim.

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impl Problem for Sphere

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fn dim(&self) -> usize

Number of decision variables.
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fn bounds(&self) -> &[Bound] ⓘ

Per-variable inclusive bounds, length Problem::dim.
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fn objective(&self, x: &[f64]) -> f64

Objective value to minimize. A non-finite return marks the point as infeasible; optimizers will reject it rather than crash.

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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<U> 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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.