Formula (Extended): $ASC Function
## Overview
Convert full-width characters to half-width characters.
## Syntax
```
$ASC(String)
```
## Parameters
|Parameter|Type|Required|Description|
|:---|:---|:---|:---|
|String|Arbitrary String|Required||
### Column Usable as Parameters
|Parameter|Classification|Numerical Value|Date|Description|Check|
|:---|:---|:---|:---|:---|:---|
|String|Yes|Yes|Yes|Yes|Yes|
## Return Value
A string converted from full-width characters to half-width characters.
If a check column is specified as an argument, the string "True" or "False" is returned.
### Return Value Display Content
|Target|Display Content of Return Value|
|:---|:---|
|Classification (including title, status, manager, owner)|Display return value. |
|Numerical Value (including work volume, progression rate, remaining work volume)|Do not display. |
|Date (including start and completion)|Do not display. |
|Description (including content)|Display return value. |
|Check (including lock)|Do not display. |
## Usage Example ①
Specify parameters by screen column name (name displayed)
### Formula
![image](https://pleasanter.org/binaries/b6b3f5a59c84424fa58c2465af099e60)
### Parameters
![image](https://pleasanter.org/binaries/df4f01c2aa9f45289f4aac7d82ce86fc)
### Calculation Result
![image](https://pleasanter.org/binaries/09242be532064a9a94b5c62de8e50b45)
## Usage Example ②
Specify check column for parameters
### Formula
![image](https://pleasanter.org/binaries/8ffe112cae9d471ab5ac32336adbb68d)
### Parameters
![image](https://pleasanter.org/binaries/5dee99d71d5f42aa8335b521ec4ea8bc)
### Calculation Result
![image](https://pleasanter.org/binaries/db69e74546014c39add4423db7423666)