Operator: ACOS

The IEC operator yields the arccosine value of a number. The value is computed in radians.

Permitted data types for input variables that measure the angle in radians: any numeric basic data type

Permitted data types for output variables: REAL and LREAL

Example 147. Examples

Result in q: 1.0472

ST

q := ACOS(0.5);

FBD