- 类别:
数值函数 (三角函数)
ACOSH¶
计算其输入的反双曲余弦值。
语法¶
ACOSH( <input_expr> )
实参¶
input_exprThe value or expression to operate on. Must be greater than or equal to 1.0. The data type must be FLOAT.
返回¶
This function returns a value of type FLOAT.
示例¶
SELECT ACOSH(2.352409615);
+--------------------+
| ACOSH(2.352409615) |
|--------------------|
| 1.5 |
+--------------------+