## Formula generator for COMBINA FUNCTION function

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# Formula generator

Spreadsheet AI is the #1 AI for generating and comprehending Excel and Google Sheets formulas. With its advanced capabilities, it goes beyond the basics by providing support for VBA and custom tasks. Streamline your spreadsheet with Spreadshee AI

# How to generate an COMBINA FUNCTION formula using AI.

To obtain information on the ARRAY_CONSTRAIN formula, you could ask the AI chatbot the following question: “To get the COMBINA formula in Excel, you can ask the AI chatbot the following question: "What is the Excel formula for calculating the number of combinations with repetition (COMBINA)?"”

## COMBINA FUNCTION formula syntax

The COMBINA function in Excel is used to calculate the number of combinations with repetitions allowed. The syntax for the COMBINA function is: COMBINA(number, number_chosen) - The "number" argument represents the total number of items to choose from. - The "number_chosen" argument represents the number of items to choose. The COMBINA function returns the number of combinations that can be formed by choosing "number_chosen" items from the total "number" of items, allowing repetitions. Note: The COMBINA function was introduced in Excel 2019 and is not available in earlier versions.

## Use Cases & Examples

In these use cases, we use the COMBINA function to calculate the number of combinations of a specified number of items from a given set.

## Calculating the number of combinations

### Description

Calculates the number of ways to choose a certain number of objects from a pool of objects, allowing for repetition.

### Result

COMBINA(n, k)

## Calculating the number of unique combinations

### Description

Calculates the number of ways to choose a certain number of objects from a pool of objects, without repetition.

### Result

COMBIN(n, k)

## Calculating the number of permutations

### Description

Calculates the number of ways to arrange a certain number of objects from a pool of objects, allowing for repetition

### Result

PERMUTA(n, k)

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### Provide Clear Context

When describing your requirements to the AI, provide clear and concise context about the data you have, the specific task you want to accomplish, and any relevant constraints or conditions. This helps the AI understand the problem accurately.

### Include Key Details

Include important details such as column names, data ranges, and specific criteria that need to be considered in the formula. The more precise and specific you are, the better the AI can generate an appropriate formula.

### Use Examples

If possible, provide examples or sample data to illustrate the desired outcome. This can help the AI better understand the pattern or logic you are looking for in the formula.

### Mention Desired Functionality

Clearly articulate the functionality you want the formula to achieve. Specify if you are looking for lookups, calculations, aggregations, or any other specific operations.

FAQ

Frequently Asked Questions

- The COMBINA function is used to calculate the number of combinations with repetitions for a given number of items.
- To use the COMBINA function, you need to provide the number of items and the number of items in each combination as arguments. For example, COMBINA(5, 3) will calculate the number of combinations of 3 items from a set of 5 items.
- The COMBIN function calculates the number of combinations without repetitions, while the COMBINA function calculates the number of combinations with repetitions.
- No, the COMBINA function only works with whole numbers. If you need to calculate combinations with decimal numbers, you can use other functions like PERMUT and FACT.
- Yes, the COMBINA function has some limitations. The maximum number of items and the maximum number of items in each combination depend on the version of Excel you are using. It's recommended to check the documentation for your specific version of Excel.