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scalismo.faces.numerics

ConjugateGradient

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object ConjugateGradient

Conjugate Gradient solver for sparse, large linear system

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  1. case class CGState(x: DenseVector[Double], r: DenseVector[Double], p: DenseVector[Double]) extends Product with Serializable

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    CG algorithm state (use for iterative interface)

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  5. def cgIteration(A: CSCMatrix[Double], b: DenseVector[Double], state: CGState): CGState

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    a single Fletcher-Reeves Conjugate Gradient iteration (matrix A should not change between iterations)

  6. def cgIterator(A: CSCMatrix[Double], b: DenseVector[Double], initial: CGState): Iterator[CGState]

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    create an iterator of Conjugate Gradient steps

  7. def clone(): AnyRef

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  8. final def eq(arg0: AnyRef): Boolean

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  12. def initialState(A: CSCMatrix[Double], b: DenseVector[Double], x: DenseVector[Double]): CGState

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    create an initial CG step (use for cgIterator)

  13. final def isInstanceOf[T0]: Boolean

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  14. final def ne(arg0: AnyRef): Boolean

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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  17. def solveSparse(A: CSCMatrix[Double], b: DenseVector[Double], xInit: DenseVector[Double], tolerance: Double, maxIter: Int): DenseVector[Double]

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    solve system A*x = b, for a sparse matrix A using the Conjugate Gradient algorithm

  18. def solveSparse(A: CSCMatrix[Double], b: DenseVector[Double], tolerance: Double = 1e-10): DenseVector[Double]

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    solve system A*x = b, for a sparse matrix A using the Conjugate Gradient algorithm uses initial guess of zero

  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  1. def finalize(): Unit

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    Deprecated

    (Since version ) see corresponding Javadoc for more information.

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