FCNGradientBase

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All Superinterfaces:

FCNBase
```
public interface FCNGradientBase
extends FCNBase
```
Extension of FCNBase for providing the analytical gradient of the function. The user-gradient is checked at the beginning of the minimization against the Minuit internal numerical gradient in order to spot problems in the analytical gradient calculation.

See Also:

MnApplication.setUseAnalyticalDerivatives(boolean), MnApplication.setCheckAnalyticalDerivatives(boolean)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`double[]`	`gradient(double[] par)` Calculate the function gradient with respect to each parameter at the given point in parameter space.

Methods inherited from interface org.freehep.math.minuit.FCNBase
valueOf

- Method Detail
  - gradient
```
double[] gradient(double[] par)
```
    Calculate the function gradient with respect to each parameter at the given point in parameter space. The size of the output gradient vector must be equal to the size of the input parameter vector.

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Jas4pp 1.5 © Java Analysis Studio for Particle Physics