All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class mathUtil.Matrix

java.lang.Object
   |
   +----mathUtil.Matrix

public class Matrix

extends Object

data

dimension

Matrix(int, double[][])

The constructor takes an input parameter and the array to instantiate the matrix

invertMatrix()

Return the inverse of the matrix.

invertMatrixLowerTriangular()

Assume that this matrix is lower triangular and invert it.

multiplyLeft(Matrix)

Multiply this matrix on the left with another matrix

multiplyRight(Matrix)

Multiply this matrix on the right with another matrix

multiplyVector(double[])

Multiple this matrix with a vector on the right.

print()

Print the matrix in row major order.

 public int dimension

 public double data[][]

 public Matrix(int n,
               double input[][])

The constructor takes an input parameter and the array to instantiate the matrix

 public void print()

Print the matrix in row major order.

 public double[] multiplyVector(double values[])

Multiple this matrix with a vector on the right.

 public Matrix multiplyRight(Matrix second)

Multiply this matrix on the right with another matrix

 public Matrix multiplyLeft(Matrix second)

Multiply this matrix on the left with another matrix

 public Matrix invertMatrixLowerTriangular()

Assume that this matrix is lower triangular and invert it. The algorithm is recursive.

 public Matrix invertMatrix()

Return the inverse of the matrix. Return null if the matrix is singular.

All Packages  Class Hierarchy  This Package  Previous  Next  Index