# 丸め

回答を丸める小数点以下の桁数を指定します。これは、行のデフォルトの精度設定を上書きします。

```
# 特定の小数点以下の桁数に丸める
1/3 to 2 dp                     | 0.33
π to 5 digits                   | 3.14159

# 切り上げと切り捨て
5.5 rounded                     | 6
5.5 rounded down                | 5
5.5 rounded up                  | 6

# 最も近い x に丸める
37 to nearest 10                | 40
$490 rounded to nearest hundred | $500
2,100 to nearest thousand       | 2,000

# 最も近い x に切り上げと切り捨て
21 rounded up to nearest 5      | 25
17 rounded down to nearest 3    | 15
```

または、以下の関数を使用します。

| Function | Name          | 動作               |
| -------- | ------------- | ---------------- |
| round()  | Integer round | 数値を最も近い整数に丸めます   |
| ceil()   | Ceiling       | 数値を最も近い整数に切り上げます |
| floor()  | Floor         | 数値を最も近い整数に切り捨てます |


---

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