org.apache.commons.math3.linear

## Class NonPositiveDefiniteMatrixException

- 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.exception.MathIllegalNumberException
            - - org.apache.commons.math3.exception.NumberIsTooSmallException
              - - org.apache.commons.math3.linear.NonPositiveDefiniteMatrixException

All Implemented Interfaces:
  java.io.Serializable, ExceptionContextProvider

    public class NonPositiveDefiniteMatrixException
    extends NumberIsTooSmallException

Exception to be thrown when a positive definite matrix is expected.

Since:
  3.0
Version:
  $Id: NonPositiveDefiniteMatrixException.java 1416643 2012-12-03 19:37:14Z tn $
See Also:
  Serialized Form

### Field Summary

Fields
`private int` `index` Index (diagonal element).
`private static long` `serialVersionUID` Serializable version Id.
`private double` `threshold` Threshold.

### Constructor Summary

Constructors
Constructor and Description
`NonPositiveDefiniteMatrixException(double wrong, int index, double threshold)` Construct an exception.

### Method Summary

Methods
`int` `getColumn()`
`int` `getRow()`
`double` `getThreshold()`

### Methods inherited from class org.apache.commons.math3.exception.NumberIsTooSmallException

`getBoundIsAllowed, getMin`

### Methods inherited from class org.apache.commons.math3.exception.MathIllegalNumberException

`getArgument`

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

`getContext, getLocalizedMessage, getMessage`

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

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

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

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

### Field Detail

#### serialVersionUID

    private static final long serialVersionUID

Serializable version Id.

See Also:
  Constant Field Values

#### index

    private final int index

Index (diagonal element).

#### threshold

    private final double threshold

Threshold.

### Constructor Detail

#### NonPositiveDefiniteMatrixException

    public NonPositiveDefiniteMatrixException(double wrong,
                                      int index,
                                      double threshold)

Construct an exception.

Parameters:
  `wrong` - Value that fails the positivity check.
  `index` - Row (and column) index.
  `threshold` - Absolute positivity threshold.

### Method Detail

#### getRow

    public int getRow()

Returns:
  the row index.

#### getColumn

    public int getColumn()

Returns:
  the column index.

#### getThreshold

    public double getThreshold()

Returns:
  the absolute positivity threshold.