org.apache.commons.math3.linear

## Class NonPositiveDefiniteOperatorException

- java.lang.Object
- - java.lang.Throwable
  - - java.lang.Exception
    - - java.lang.RuntimeException
      - - java.lang.IllegalArgumentException
        - - org.apache.commons.math3.exception.MathIllegalArgumentException
          - - org.apache.commons.math3.linear.NonPositiveDefiniteOperatorException

- All Implemented Interfaces:
    Serializable, ExceptionContextProvider

      public class NonPositiveDefiniteOperatorException
      extends MathIllegalArgumentException

  Exception to be thrown when a symmetric, definite positive `RealLinearOperator` is expected. Since the coefficients of the matrix are not accessible, the most general definition is used to check that `A` is not positive definite, i.e. there exists `x` such that `x' A x <= 0`. In the terminology of this exception, `A` is the "offending" linear operator and `x` the "offending" vector.
  Since:
    3.0
  Version:
    $Id: NonPositiveDefiniteOperatorException.java 1416643 2012-12-03 19:37:14Z tn $
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `NonPositiveDefiniteOperatorException()` Creates a new instance of this class.

  - ### Method Summary

    - ### Methods inherited from class org.apache.commons.math3.exception.MathIllegalArgumentException

      `getContext, getLocalizedMessage, getMessage`

    - ### Methods inherited from class java.lang.Throwable

      `addSuppressed, fillInStackTrace, getCause, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### NonPositiveDefiniteOperatorException

          public NonPositiveDefiniteOperatorException()

      Creates a new instance of this class.

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