> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Numerical

> The Numerical component lets you enter numeric information. It supports units, decimal places, thousands separators, and more. Use it for amounts, ages, quantities, and similar scenarios. It also supports calculations, statistical analysis, and aggregation. Note: For bank card numbers, ID numbers, and similar values, use the Single-line text component.

<Warning>
  Important:

  * Use the Numerical component only for values that participate in calculations. For bank card numbers, ID numbers, phone numbers, and similar values, use the Single-line text component.
</Warning>

## 1. Use Cases

Use the Numerical component to enter numeric information such as amounts, ages, and quantities. Numbers entered through this component can be used for calculations, statistical analysis, and aggregation.

[Component basics](/yida/form/snftao)

<Note>
  For component attributes, usage, and examples, see [**Component interface**](/open/yida/components/interface).
</Note>

## 2. Basic Features

### 2.1 Unit

Set a unit for the number, such as "CNY", "book", or "page". Customize the unit as needed. See the example below:

### 2.2 Decimal Places

Set the number of decimal places to retain. This is useful for entering amounts with precise decimal values. See the example below:

Set decimal places.

### 2.3 Thousands Separator

To make large numbers easier to read, use the **Thousands separator** toggle in the attribute panel on the right side of the Numerical component.

Toggle in the right panel:

Thousands separator.

## 3. FAQ

<AccordionGroup>
  <Accordion id="q1" title="3.1 Why can't the Numerical component accept numbers longer than 16 digits?">
    The maximum value of the Numerical component is `9007199254740991`, and the minimum is `-9007199254740991`. If your value exceeds this range, use the [**Single-line text**](/yida/form/fsuzg9) component instead.
  </Accordion>
</AccordionGroup>

### 3.2 Decimal Places Setting Does Not Take Effect

The decimal places setting applies only to values entered manually in the Numerical component. If the value is produced by a **formula calculation**, use a [math function](/yida/form/nn2gzi) such as `ROUND` to control the decimal places.

<AccordionGroup>
  <Accordion id="q2" title="3.3 Why can't I enter a decimal in the default value?">
    The Numerical component's default value does not support decimals directly. Use variable binding instead, as shown below:
  </Accordion>

  <Accordion id="q3" title="3.4 How do I format an entered number as a percentage automatically?">
    Drag a Text component onto the form and configure the following formula.
  </Accordion>

  <Accordion id="q4" title="3.5 Why doesn't calculation work when the Numerical component has many decimal places?">
    Check whether the unit of the Numerical component is %. If so, enter at least four decimal places (for values less than 1%) so that the value participates in formula calculations.
  </Accordion>
</AccordionGroup>