Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 566

ACOSD
ACOSD(855) computes the angle (in radians) for a cosine value expressed as a double-precision (64-
bit) floating-point number in words S to S+3 and places the result in words D to D+3.
(The floating point source data must be in IEEE754 format.)
The result is output to words D to D+3 as an angle (in radians) within the range of 0 to .
The following diagram shows the relationship between the input data and
result.
ATAND
ATAND(856) computes the angle (in radians) for a tangent value expressed as a double-precision (64-
bit) floating-point number in words S to S+3 and places the result in D to D+3.
(The floating point source data must be in IEEE754 format.)
The result is output to words D to D+3 as an angle (in radians) within the range of - /2 to /2.
The following diagram shows the relationship between the input data and
result.
CS/CJ/NSJ Series Instructions Reference Manual (W474)
–1
COS ( S+3 S+2 S+1
–1
TAN ( S+3 S+2 S+1
S ) D+3 D+2 D+1
S: Input data (cosine value)
R
R: Result (radians)
S ) D+3 D+2 D+1
R
S: Input data (tangent)
R: Result (radians)
3. Instructions
D
D
3
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