# 三角函数和双曲函数

本节介绍执行三角和双曲运算的函数。在所有函数中，参数都是用来解算以弧度测量的角度的表达式，其中 x 应解释为实数。

所有角度都以弧度为单位。

所有函数均可用于数据加载脚本和图表表达式。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### cos

x 的余弦。结果是介于 -1 与 1 之间的数字。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)cos( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### acos

x 的反余弦。仅在 -1≤x≤1 时才可定义此函数。结果是介于 0 和 p 之间的数字。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)acos( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### sin

x 的正弦。结果是介于 -1 与 1 之间的数字。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)sin( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### asin

x 的反正弦。仅在 -1≤x≤1 时才可定义此函数。结果是介于 -p/2 和 p/2 之间的数字。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)asin( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### tan

x 的正切。结果为实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)tan( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### atan

x 的反正切。结果是介于 -p/2 和 p/2 之间的数字。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)atan( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### atan2

反正切函数的二维广义形式。返回原点和 x，y 坐标所决定点之间的角度。结果是介于 -p 和 +p 之间的数字。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)atan2( y,x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### cosh

x 的双曲余弦。结果为正实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)cosh( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### sinh

x 的双曲正弦。结果为实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)sinh( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### tanh

x 的双曲正切。结果为实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)tanh( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### acosh

x 的反双曲余弦。结果为正实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)acosh( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### asinh

x 的反双曲正弦。结果为实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)asinh( x )

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)

#### atanh

x 的反双曲正切。结果为实数。

[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)[](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/TrigonometricAndHyperbolicFunctions/trigonometric-hyperbolic-functions.htm)atanh( x )

示例：

以下脚本代码用于加载示例表格，然后加载包含值计算的三角函数和双曲操作的表格。

```
SampleData:
LOAD * Inline
[Value
-1
0
1];

Results:
Load *, 
cos(Value),
acos(Value),
sin(Value),
asin(Value),
tan(Value),
atan(Value),
atan2(Value, Value),
cosh(Value),
sinh(Value),
tanh(Value)
RESIDENT SampleData;

Drop Table SampleData;
```