F319_ATAN

The arctangent of the value specified in s is calculated, and the result [an angle data (units are radians)] is stored in d.

Parameters

Input

s (REAL)

Real number tangent of angle (radians) data.

Output

d (REAL)

32-bit area for result (destination).

Remarks

• d is stored within the following range: -p/2 (radians) < [d] < p/2 (radians).

• F319_ATAN cannot be programmed in the interrupt program.

• Instead of using F319_ATAN, you can use variables of the type REAL with the more flexible instruction ATAN.

Error flags

sys_bIsOperationErrorHold (turns to TRUE and remains TRUE)

• if data other than real number data is specified in s.

sys_bIsOperationErrorNonHold (turns to TRUE for one scan)

• if data other than real number data is specified in s.

sys_bIsEqual (turns to TRUE and remains TRUE)

if the result of processing is recognized as "0".

sys_bIsCarry (turns to TRUE for one scan)

if the result is overflowed.