Combiner (Starjava ARRAY API)

```
public interface Combiner
```
Defines a real function of two real variables.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  double combination(double val1, double val2)
  The function of two variables.

- Method Detail
  - combination
```
double combination(double val1,
                   double val2)
```
    The function of two variables.
    
    Parameters:
    
    val1 - the first variable
    
    val2 - the second variable
    
    Returns:
    
    the result of the function. May be Double.NaN.