FX (SNAP Engine API)

```
public interface FX
```
Represents a function f(x).

Field Summary

Fields
Modifier and Type	Field	Description
`static FX`	`ONE`	The function f(x) = 1
`static FX`	`X`	The function f(x) = x
`static FX`	`XX`	The function f(x) = x ²
`static FX`	`XXX`	The function f(x) = x ³
`static FX`	`XXXX`	The function f(x) = x ⁴

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`f(double x)`	The function y = f(x)
`String`	`getCCodeExpr()`	Returns the function as C code expression, e.g.

- Field Detail
  - XXXX
```
static final FX XXXX
```
    The function f(x) = x ⁴
  - XXX
```
static final FX XXX
```
    The function f(x) = x ³
  - XX
```
static final FX XX
```
    The function f(x) = x ²
  - X
```
static final FX X
```
    The function f(x) = x
  - ONE
```
static final FX ONE
```
    The function f(x) = 1
- Method Detail
  - f
```
double f(double x)
```
    The function y = f(x)
    
    Parameters:
    
    x - the x parameter
    
    Returns:
    
    y
  - getCCodeExpr
```
String getCCodeExpr()
```
    Returns the function as C code expression, e.g. "pow(x, 3) * y"
    
    Returns:
    
    the C code