COMBINA (PQL  xl)
This function calculates the number of possible combinations (along with repetitions) for the specified number of items
 Library: PQL \ Spreadsheet \ Math & Trig
 Compatibility: Any content (regardless of data source) in the Tabulate spreadsheet module
 Solve: This function can be used with the Solve plugin: both as part of the objective function and constraint functions
Syntax
COMBINA(number, number chosen)
Function Arguments
Name  Description  Type  Optional 
number  Refers to the number representing the number of items. This value must be positive and greater than or equal to the second argument i.e. number chosen  Number 

number chosen  Refers to the number of items in each possible combination. This value must be positive  Number 

Comments
This function is the same as the Microsoft Excel 'COMBINA' function  using the same inputs, logic and outputs.