Hep3Matrix

java.lang.Object
- hephysics.matrix.BasicMatrix
- - hephysics.vec.Hep3Matrix

All Implemented Interfaces:

Matrix, MutableMatrix, Serializable
```
public class Hep3Matrix
extends BasicMatrix
```
Hep 3x3 matrices

See Also:

VecOp, Serialized Form

Constructor Summary

Constructors
Constructor and Description
`Hep3Matrix()`
`Hep3Matrix(double[][] data)` Creates a new instance of BasicMatrix
`Hep3Matrix(double e11, double e12, double e13, double e21, double e22, double e23, double e31, double e32, double e33)`
`Hep3Matrix(int nRows, int nCols)`
`Hep3Matrix(Matrix m)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`double`	`det()` Returns the determinent of the matrix.
`double`	`e(int row, int column)` Returns the (row, column) element
`int`	`getNColumns()` Returns the number of columns
`int`	`getNRows()` Returns the number of rows
`static Hep3Matrix`	`identity()`
`void`	`invert()` Invert this matrix (into itself)
`static Hep3Matrix`	`mult(Hep3Matrix m1, Hep3Matrix m2)`
`void`	`setActiveEuler(double phi, double theta, double psi)` Defines a rotation matrix via Euler angles.
`void`	`setElement(int row, int column, double value)` Sets the (row, column) element
`void`	`setPassiveEuler(double phi, double theta, double psi)` Defines a rotation matrix via Euler angles.
`String`	`toString()`
`double`	`trace()` Returns the trace of the matrix.
`void`	`transpose()` Tranpose this matrix (into itself)

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Hep3Matrix
```
public Hep3Matrix(int nRows,
                  int nCols)
```
  - Hep3Matrix
```
public Hep3Matrix(double[][] data)
```
    Creates a new instance of BasicMatrix
  - Hep3Matrix
```
public Hep3Matrix()
```
  - Hep3Matrix
```
public Hep3Matrix(double e11,
                  double e12,
                  double e13,
                  double e21,
                  double e22,
                  double e23,
                  double e31,
                  double e32,
                  double e33)
```
  - Hep3Matrix
```
public Hep3Matrix(Matrix m)
           throws MatrixOp.InvalidMatrixException
```
    Throws:
    
    MatrixOp.InvalidMatrixException
- Method Detail
  - e
```
public double e(int row,
                int column)
```
    Returns the (row, column) element
    
    Specified by:
    
    e in interface Matrix
    
    Overrides:
    
    e in class BasicMatrix
  - det
```
public double det()
```
    Returns the determinent of the matrix.
    
    Overrides:
    
    det in class BasicMatrix
  - trace
```
public double trace()
```
    Returns the trace of the matrix.
  - setElement
```
public void setElement(int row,
                       int column,
                       double value)
```
    Sets the (row, column) element
    
    Specified by:
    
    setElement in interface MutableMatrix
    
    Overrides:
    
    setElement in class BasicMatrix
  - setPassiveEuler
```
public void setPassiveEuler(double phi,
                            double theta,
                            double psi)
```
    Defines a rotation matrix via Euler angles. A "passive" rotation matrix rotates the coordinate system, an "active" one rotates the vector(body). The angles are defined for a right handed coordinate system. They are defined by counterclockwise rotations about an axis by the right hand rule, ie, looking down the axis in the negative direction the transvers axes are seen to rotate counterclockwise. To define passive(active) angles first rotate the coordinates(body) about the z-axis by phi, then about the new x-axis by theta then about the new z-axis by psi. Angles in radians.
  - setActiveEuler
```
public void setActiveEuler(double phi,
                           double theta,
                           double psi)
```
    Defines a rotation matrix via Euler angles. A "passive" rotation matrix rotates the coordinate system, an "active" one rotates the vector(body). The angles are defined for a right handed coordinate system. They are defined by counterclockwise rotations about an axis by the right hand rule, ie, looking down the axis in the negative direction the transvers axes are seen to rotate counterclockwise. To define passive(active) angles first rotate the coordinates(body) about the z-axis by phi, then about the new x-axis by theta then about the new z-axis by psi. Angles in radians.
  - identity
```
public static Hep3Matrix identity()
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class BasicMatrix
  - getNRows
```
public int getNRows()
```
    Description copied from interface: Matrix
    
    Returns the number of rows
    
    Specified by:
    
    getNRows in interface Matrix
    
    Overrides:
    
    getNRows in class BasicMatrix
  - getNColumns
```
public int getNColumns()
```
    Description copied from interface: Matrix
    
    Returns the number of columns
    
    Specified by:
    
    getNColumns in interface Matrix
    
    Overrides:
    
    getNColumns in class BasicMatrix
  - invert
```
public void invert()
            throws MatrixOp.IndeterminateMatrixException
```
    Description copied from interface: MutableMatrix
    
    Invert this matrix (into itself)
    
    Specified by:
    
    invert in interface MutableMatrix
    
    Overrides:
    
    invert in class BasicMatrix
    
    Throws:
    
    MatrixOp.IndeterminateMatrixException
    
    See Also:
    
    MatrixOp.inverse(Matrix,MutableMatrix)
  - transpose
```
public void transpose()
```
    Description copied from interface: MutableMatrix
    
    Tranpose this matrix (into itself)
    
    Specified by:
    
    transpose in interface MutableMatrix
    
    Overrides:
    
    transpose in class BasicMatrix
    
    See Also:
    
    MatrixOp.transposed(Matrix,MutableMatrix)
  - mult
```
public static Hep3Matrix mult(Hep3Matrix m1,
                              Hep3Matrix m2)
```

Class Hep3Matrix

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Hep3Matrix

Hep3Matrix

Hep3Matrix

Hep3Matrix

Hep3Matrix

Method Detail

e

det

trace

setElement

setPassiveEuler

setActiveEuler

identity

toString

getNRows

getNColumns

invert

transpose

mult