Class AdamsMoultonIntegrator.Corrector
- java.lang.Object
-
- org.apache.commons.math3.ode.nonstiff.AdamsMoultonIntegrator.Corrector
-
- All Implemented Interfaces:
RealMatrixPreservingVisitor
- Enclosing class:
- AdamsMoultonIntegrator
private class AdamsMoultonIntegrator.Corrector extends java.lang.Object implements RealMatrixPreservingVisitor
Corrector for current state in Adams-Moulton method.This visitor implements the Taylor series formula:
Yn+1 = yn + s1(n+1) + [ -1 +1 -1 +1 ... ±1 ] rn+1
-
-
Constructor Summary
Constructors Constructor Description Corrector(double[] previous, double[] scaled, double[] state)
Simple constructor.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
end()
End visiting the Nordsieck vector.void
start(int rows, int columns, int startRow, int endRow, int startColumn, int endColumn)
Start visiting a matrix.void
visit(int row, int column, double value)
Visit one matrix entry.
-
-
-
Method Detail
-
start
public void start(int rows, int columns, int startRow, int endRow, int startColumn, int endColumn)
Start visiting a matrix.This method is called once before any entry of the matrix is visited.
- Specified by:
start
in interfaceRealMatrixPreservingVisitor
- Parameters:
rows
- number of rows of the matrixcolumns
- number of columns of the matrixstartRow
- Initial row indexendRow
- Final row index (inclusive)startColumn
- Initial column indexendColumn
- Final column index (inclusive)
-
visit
public void visit(int row, int column, double value)
Visit one matrix entry.- Specified by:
visit
in interfaceRealMatrixPreservingVisitor
- Parameters:
row
- row index of the entrycolumn
- column index of the entryvalue
- current value of the entry
-
end
public double end()
End visiting the Nordsieck vector.The correction is used to control stepsize. So its amplitude is considered to be an error, which must be normalized according to error control settings. If the normalized value is greater than 1, the correction was too large and the step must be rejected.
- Specified by:
end
in interfaceRealMatrixPreservingVisitor
- Returns:
- the normalized correction, if greater than 1, the step must be rejected
-
-