scalation.linalgebra

SymmetricQRstep

object SymmetricQRstep extends Eigen with Error

The SymmetricQRstep object performs a symmetric QR step with a Wilkinson shift.

See also

http://people.inf.ethz.ch/arbenz/ewp/Lnotes/chapter3.pdf (Algorithm 3.6)

Algorithm 8.3.2 in Matrix Computations.

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Error, Eigen, AnyRef, Any
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  1. final def !=(arg0: AnyRef): Boolean

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  3. final def ##(): Int

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  5. final def ==(arg0: Any): Boolean

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  6. val DEBUG: Boolean

    Debug flag

    Debug flag

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  7. val EPSILON: Double

    Error tolerance value

    Error tolerance value

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  8. final def asInstanceOf[T0]: T0

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  9. def clone(): AnyRef

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  13. def flaw(method: String, message: String): Unit

    Show the flaw by printing the error message.

    Show the flaw by printing the error message.

    method

    the method where the error occurred

    message

    the error message

    Definition Classes
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  14. final def getClass(): Class[_]

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  15. def hashCode(): Int

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  16. final def isInstanceOf[T0]: Boolean

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

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  18. final def notify(): Unit

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  19. final def notifyAll(): Unit

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  20. def qRStep(t: SymTriMatrixD, p: Int, q: Int): Unit

    Apply a QR reduction step to matrix t.

    Apply a QR reduction step to matrix t.

    t

    the unreduced symmetric tridiagonal matrix

    p

    the row index

    q

    the column index

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

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  22. def toString(): String

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  23. final def wait(): Unit

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  24. final def wait(arg0: Long, arg1: Int): Unit

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  25. final def wait(arg0: Long): Unit

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