F318_ACOS

The arccosine 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 cosine of angle (radians) data.

Output

d (REAL)

32-bit area for result (destination).

Remarks

• d is stored within the following range: 0.0 (radians) £ [d] £p (radians).

• F318_ACOS cannot be programmed in the interrupt program.

• Instead of using F318_ACOS, you can use variables of the type REAL with the more flexible instruction ACOS.

Error flags

sys_bIsOperationErrorHold (turns to TRUE and remains TRUE)

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

• if s is not between -1.0 and 1.0.

sys_bIsOperationErrorNonHold (turns to TRUE for one scan)

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

• if s is not between -1.0 and 1.0.

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.