/**
* Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.analytics.math.rootfinding.newton;
import com.opengamma.analytics.math.function.Function1D;
import com.opengamma.analytics.math.matrix.DoubleMatrix1D;
import com.opengamma.analytics.math.matrix.DoubleMatrix2D;
import com.opengamma.util.ArgumentChecker;
/**
*
*/
public class JacobianEstimateInitializationFunction implements NewtonRootFinderMatrixInitializationFunction {
@Override
public DoubleMatrix2D getInitializedMatrix(final Function1D<DoubleMatrix1D, DoubleMatrix2D> jacobianFunction, final DoubleMatrix1D x) {
ArgumentChecker.notNull(jacobianFunction, "Jacobian Function");
ArgumentChecker.notNull(x, "x");
return jacobianFunction.evaluate(x);
}
}