```
public class Function1Diffddd
extends Functiondd
```
Interface for functions which are 1 time differentiable

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`delete()`
`double`	`df(double q)`	Returns gradient(derivative) of the function
`static long`	`getCPtr(Function1Diffddd obj)`

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

public Function1Diffddd(long cPtr,
                        boolean cMemoryOwn)

public static long getCPtr(Function1Diffddd obj)

df
```
public double df(double q)
```
Returns gradient(derivative) of the function

Class Function1Diffddd