TridiagonalSolver (OpenGamma Strata)

java.lang.Object
- com.opengamma.strata.math.impl.linearalgebra.TridiagonalSolver

public class TridiagonalSolver
extends Object

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static double[]`	`solvTriDag(TridiagonalMatrix aM, double[] b)`	Solves the system Ax = y for the unknown vector x, where A is a tridiagonal matrix and y is a vector.
`static DoubleArray`	`solvTriDag(TridiagonalMatrix aM, DoubleArray b)`	Solves the system Ax = y for the unknown vector x, where A is a tridiagonal matrix and y is a vector.

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

- Method Detail
  - solvTriDag
```
public static double[] solvTriDag(TridiagonalMatrix aM,
                                  double[] b)
```
    Solves the system Ax = y for the unknown vector x, where A is a tridiagonal matrix and y is a vector. This takes order n operations where n is the size of the system (number of linear equations), as opposed to order n^3 for the general problem.
    
    Parameters:
    
    aM - tridiagonal matrix
    
    b - known vector (must be same length as rows/columns of matrix)
    
    Returns:
    
    vector (as an array of doubles) with same length as y
  - solvTriDag
```
public static DoubleArray solvTriDag(TridiagonalMatrix aM,
                                     DoubleArray b)
```
    Solves the system Ax = y for the unknown vector x, where A is a tridiagonal matrix and y is a vector. This takes order n operations where n is the size of the system (number of linear equations), as opposed to order n^3 for the general problem.
    
    Parameters:
    
    aM - tridiagonal matrix
    
    b - known vector (must be same length as rows/columns of matrix)
    
    Returns:
    
    vector with same length as y