Operator ‘ACOS’¶

This 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

Examples

Result in q: 1.0472

ST:

q := ACOS(0.5);

FBD: