# [−][src]Struct argmin::solver::landweber::Landweber

`pub struct Landweber { /* fields omitted */ }`

The Landweber iteration is a solver for ill-posed linear inverse problems.

In iteration `k`, the new parameter vector `x_{k+1}` is calculated from the previous parameter vector `x_k` and the gradient at `x_k` according to the following update rule:

`x_{k+1} = x_k - omega * \nabla f(x_k)`

Example

# References

[0] Landweber, L. (1951): An iteration formula for Fredholm integral equations of the first kind. Amer. J. Math. 73, 615–624 [1] https://en.wikipedia.org/wiki/Landweber_iteration

Constructor

## Trait Implementations

### `impl Clone for Landweber`[src]

#### `fn clone_from(&mut self, source: &Self)`1.0.0[src]

Performs copy-assignment from `source`. Read more

### `impl<O> Solver<O> for Landweber where    O: ArgminOp,    O::Param: ArgminScaledSub<O::Param, f64, O::Param>, `[src]

#### `fn terminate_internal(&mut self, state: &IterState<O>) -> TerminationReason`[src]

Checks whether basic termination reasons apply. Read more

#### `fn terminate(&mut self, _state: &IterState<O>) -> TerminationReason`[src]

Checks whether the algorithm must be terminated

## Blanket Implementations

### `impl<T> ToOwned for T where    T: Clone, `[src]

#### `type Owned = T`

The resulting type after obtaining ownership.

### `impl<T, U> TryFrom<U> for T where    U: Into<T>, `[src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

### `impl<T, U> TryInto<U> for T where    U: TryFrom<T>, `[src]

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

The type returned in the event of a conversion error.