# Numeric parameter

Create a numeric input field which can be used as a variable in other cards that take a number as input.

Examples include:

* Numeric properties filter values in the [filter object set](../card-filter-object-set/index.md) card.
* Inputs in [formula cards](../cards-formulas/index.md), which can be useful as a way to quickly test different formula coefficients.
* Window duration value in the [rolling aggregate](../card-rolling-aggregate/index.md) card.

## Input type

Flow start

## Output type

Number

## Usage information

| Functionality | Availability |
| --- | --- |
| [Standard Quiver card](../core-concepts/index.md#cards) | Supported |
| [Transform table transform](../cards-transform-table/index.md) | Unsupported |