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- Function _ArrayAdd
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- Language Reference
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文章来源于网络收集而来，版权归原创者所有，如有侵权请及时联系！
Function ATan
ATan
求某个数的反正切值（arctangent）。
ATan ( 表达式 )
参数
| 表达式 | 任何合法的数值表达式。 |
返回值
返回表达式的反正切值（反三角函数的一种），结果以弧度表示。注意
4 * ATan(1) 的运算结果是 pi。相关
Sin, Cos, Tan, ASin, ACos示例
$x = ATan(0.5)
$pi = 4 * ATan(1) ;等价于 3.14159265358979
$radToDeg = 180 / $pi
$y = ATan(1) * $radToDeg ;1 的反正切值是 45°
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