VectorFunction

```
public interface VectorFunction
```
A vector function that takes a vector's element and produces a new value.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  double evaluate(int i, double value)
  Evaluates vector's element.

- Method Detail
  - evaluate
```
double evaluate(int i,
                double value)
```
    Evaluates vector's element.
    
    Parameters:
    
    i - the element's index
    
    value - the element's value
    
    Returns:
    
    a new element's value