Npv (Keikai Spreadsheet Build 6.0.0 API)

java.lang.Object
- org.apache.poi.ss.formula.functions.Npv

All Implemented Interfaces:

Function
```
public final class Npv
extends Object
implements Function
```
Calculates the net present value of an investment by using a discount rate and a series of future payments (negative values) and income (positive values). Minimum 2 arguments, first arg is the rate of discount over the length of one period others up to 254 arguments representing the payments and income.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Npv()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  ValueEval evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Npv
```
public Npv()
```
- Method Detail
  - evaluate
```
public ValueEval evaluate(ValueEval[] args,
                          int srcRowIndex,
                          int srcColumnIndex)
```
    Specified by:
    
    evaluate in interface Function
    
    Parameters:
    
    args - the evaluated function arguments. Empty values are represented with BlankEval or MissingArgEval, never null.
    
    srcRowIndex - row index of the cell containing the formula under evaluation
    
    srcColumnIndex - column index of the cell containing the formula under evaluation
    
    Returns:
    
    The evaluated result, possibly an ErrorEval, never null. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate to Double.NaN be sure to translate the result to ErrorEval.NUM_ERROR.