tan

description

Syntax

DOUBLE tan(DOUBLE x) 返回x的正切值，x为弧度值.

example

mysql> select tan(0);
+----------+
| tan(0.0) |
+----------+
|        0 |
+----------+
mysql> select tan(1);
+--------------------+
| tan(1.0)           |
+--------------------+
| 1.5574077246549023 |
+--------------------+

keywords

TAN