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7-269

ACOSD(P)

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.12 Special function

 instructions

7

.12.10 COS -1 op

eration on floating-point

 data

 (Doub

le pr

ecision)

 (ACOSD(

P

))

COS 

-1

 operation on floating-point data (Double precision)

 (ACOSD(P))

ACOSD(P)

Function

(1) The angle is calculated from the COS (cosine) value specified by 

 is and its result is 

stored into the device specified by 

.

(2) The COS value designated by 

 can be in the range of from  1.0 to 1.0.

(3) The angle (operation result) stored at 

 is stored in radian units.

For more information on the conversion between radian and angle data, see description of 
RADD and DEGD instructions.

(4) When the operation results in -0 or an underflow, the result is processed as 0.

: COS value of which the COS

-1

 (inverse cosine) value is obtained or head number of the devices where the 

COS value is stored (real number)

: Head number of the devices where the operation result will be stored (real number)

Setting 

Data

Internal Devices 

R, ZR

J

\

U

\G

Zn

Constants

E

Other

Bit

Word

Bit

Word

––

––

––

––

––

––

––

Basic

Process

High

performance

Redundant

Command

Command

ACOSDP

ACOSD

ACOSDP

ACOSD

S

D

S

D

S

D

S

D

S

D

)

COS   (

1

64-bit floating-point
real number

64-bit floating-point
real number

+3

S

+2

S

S

+1

S

+3

D

+2

D

D

+1

D

S

D