Operator ‘ATAN’¶

This IEC operator yields the arctangent 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: 0.463648

ST:

q := ATAN(0.5);

FBD: