Cosine arch, (inverse of cosine) of a specific number of radians.

1 math.acos

<math.acos>
    <var /> +
</math.acos>

Exceptions

at least 1 argument required

At least 1 argument is required.

illegal operator

Incorrect operator.

illegal object types

See also

https://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#acos(double)

Example
Copy 
<xsql-script name='acos_sample1'>
    <body>
        <set name='result'><math.acos>0</math.acos></set>
        <println>acos(0) = <result/></println>              --> acos(0) = 1.5707963267948966
    </body>
</xsql-script>

Returns:

Copy 
acos(0) = 1.5707963267948966
Example
Copy 
<xsql-script name='acos_sample2'>
	<body>
		<set name='result'><math.acos>1</math.acos></set>
		<println>acos(1) = <result/></println>              --> acos(1) = 0.0
	</body>
</xsql-script>

Returns:

Copy 
acos(1) = 0.0