| 1. | Converts a double - precision floating - point number from one 将双精度浮点数从一种 |
| 2. | A double - precision floating - point number to be rounded 要舍入的双精度浮点数。 |
| 3. | Converts a double - precision floating - point number to a 将双精度浮点数字转换为 |
| 4. | Converts a single - precision floating - point number to a 将单精度浮点数字转换为 |
| 5. | Returns a double - precision floating - point number 返回一个双精度浮点数字。 |
| 6. | Returns a single - precision floating - point number 返回一个单精度浮点数字。 |
| 7. | The default data type for floating - point numbers is 浮点数的默认数据类型是 |
| 8. | Is unspecified for floating - point numbers Rem . un对于浮点数是未指定的。 |
| 9. | To a double - precision floating - point number 实例转换为双精度浮点数字。 |
| 10. | To a single - precision floating - point number 实例转换为单精度浮点数字。 |