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## ar

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ARCOS

*Function.* Arc cosine.
Ref:
**PSPPR**:Functions.
**PSPL**:Functions and CALL Routines:Mathematical Functions.
**SLRD**:Functions and CALL Routines.

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argument

(a:r' gU m*e*nt') *n.*

1. a value provided to a routine, such as function, format, etc.,
by the program that calls the routine.
Arguments to functions and CALL routines are listed, separated by commas, in
parentheses after the routine name.
Informats and formats use width and
decimal arguments.

2. a value provided as a component of the syntax of any part of a program.

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ARIMA

*SAS/ETS. Procedure.* Autoregressive moving average.

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arithmetic

(*u* rith' m*u* tik) *n.*

1. the use of simple mathematical operators such as
addition and division with real numbers.

(a^r' ith met' ik) *adj.*

2. used in or resulting from arithmetic.

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array

(*u* rA') *n.*

1. a named list of variables in a data step or SCL program.
An array is defined in the ARRAY statement.

2. in most programming languages, a list of like objects from which individual
objects can be accessed by number;
a composite data object or variable in which all elements have the same type and are
distinguished from each other by distinct integer values used to identify them.

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ARRAY

*Data step statement.*
Ref:
**PSPPR**:Data Step Statements.
**PSPL**:Loops and Arrays:Arrays.
**SLRD**:Statements.

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array reference

*n.*

the use of the name of an array to refer to an element of the
array. An array reference is written with the array name followed
by subscript values in braces.

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arrow key

*n.*

cursor key.

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ARSIN

*Function.* Arc sine.
Ref:
**PSPPR**:Functions.
**PSPL**:Functions and CALL Routines:Mathematical Functions.
**SLRD**:Functions and CALL Routines.

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artificial intelligence

*n.*

intelligence as a quality of or
used in the operation of a program.

Abbr. **AI**

While large companies have been tinkering with artificial
intelligence to predict shopping patterns or improve network performance,
NASA is taking it out of this world.
When NASA launches a trio of satellites from the space shuttle as part of the
Three Corner Sat mission next year, they wonâ€™t be guided from ground control.
These birds will have a mind of their own. ["AI Takes to the Sky,"
*Information Week*, June 11, 2001, p. 83.]

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