System Function A

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⎕A - Return Latin Alphabet

Z←⎕A returns the 26-character uppercase Latin alphabet.
Z is the character vector 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.

The name is case sensitive, so ⎕A is different from ⎕a which returns 'abcdefghijklmnopqrstuvwxyz'. There are also ten other variations on this system function each of which returns either the lower- or upper-case accented alphabet as in ⎕á ⎕Á ⎕à ⎕À ⎕â ⎕Â ⎕ä ⎕Ä ⎕ã ⎕Ã. For example:

      ⍪⎕a ⎕á ⎕à ⎕â ⎕ä ⎕ã
 abcdefghijklmnopqrstuvwxyz
 ábćdéfǵhíjḱĺḿńóṕqŕśtúvẃxýź
 àbcdèfghìjklmǹòpqrstùvẁxỳz
 âbĉdêfĝĥîĵklmnôpqrstuvwxyz
 äbcdëfgḧïjklmnöpqrsẗüvẅẍÿz
 ãbcdẽfghĩjklmñõpqrstũṽwxỹz
      ⍪⎕A ⎕Á ⎕À ⎕Â ⎕Ä ⎕Ã
 ABCDEFGHIJKLMNOPQRSTUVWXYZ
 ÁBĆDÉFǴHÍJḰĹḾŃÓṔQŔŚTÚVẂXÝŹ
 ÀBCDÈFGHÌJKLMǸÒPQRSTÙVẀXỲZ
 ÂBĈDÊFĜĤÎĴKLMNÔPQRŜTÛVŴXŶẐ
 ÄBCDËFGḦÏJKLMNÖPQRSTÜVẄẌŸZ
 ÃBCDẼFGHĨJKLMÑÕPQRSTŨṼWXỸZ

The result of ⎕A may be used as any other string, including referencing individual letters. For example:
      ⎕A[8 5 12 12 15]
HELLO

See also ⎕CS, a Collating Sequence based upon the values of these system functions.


Note: A is a niladic form system function, you cannot assign a value to it.

System Variables (A value may be assigned to these except for ⎕DM)
ALX CT DM DT ELX FC FEATURE FPC IC IO
LX PP PR PW RL SA WSID
Niladic System Functions (a value cannot be assigned to these)
A AV EM ET LC NNAMES NNUMS SYSID SYSVER T
TC TCBEL TCBS TCESC TCFF TCHT TCLF TCNL TCNUL TS
WA
Monadic or dyadic system functions (a value cannot be assigned to these)
AT CR DC DL DR EA EC ERROR ES EX
FMT FX MF NAPPEND NC NCREATE NERASE NINFO NL NLOCK
NREAD NRENAME NREPLACE NRESIZE NSIZE NTIE NUNTIE STOP TF TRACE
UCS VR
Note that quad functions and variables are case insensitive


See Also
System Commands System Variables and Functions Operators
Keyboard
A+S
Alt ¨ ¯ < > × ÷
Sh ~ ! @ # $ % ^ & * ( ) _ +
Key ` 1 2 3 4 5 6 7 8 9 0 - =
A+S
Alt ? π
Sh Q W E R T Y U I O P { } |
Key q w e r t y u i o p [ ] \
A+S §
Alt
Sh A S D F G H J K L : "
Key a s d f g h j k l ; '
A+S
Alt
Sh Z X C V B N M < > ?
Key z x c v b n m , . /
NARS 2000 Lang
Tool
Bar
+ - × ÷ * ! ? |
= < >
~ § π .. ,
/ \ ¨ .
_ ¯ b e g p r v x


See Also
System Commands System Variables and Functions Operators
Keyboard
A+S
Alt ¨ ¯ < > × ÷
Sh ~ ! @ # $ % ^ & * ( ) _ +
Key ` 1 2 3 4 5 6 7 8 9 0 - =
A+S
Alt ? π
Sh Q W E R T Y U I O P { } |
Key q w e r t y u i o p [ ] \
A+S §
Alt
Sh A S D F G H J K L : "
Key a s d f g h j k l ; '
A+S
Alt
Sh Z X C V B N M < > ?
Key z x c v b n m , . /
NARS 2000 Lang
Tool
Bar
+ - × ÷ * ! ? |
= < >
~ § π .. ,
/ \ ¨ .
_ ¯ b e g p r v x