System Variables and Functions

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Niladic System Functions
⎕A The alphabet from A to Z, also Á to Ź,  to Ẑ, À to À, Ä to Z and à to Z, all in lowercase, too
using the variations ⎕a ⎕A ⎕á ⎕Á ⎕à ⎕À ⎕â ⎕Â ⎕ä ⎕Ä ⎕ã ⎕Ã
⎕AV Atomic Vector
⎕CS Collating sequence
⎕EM Event Message
⎕ET Event Type
⎕LC Line Counter
⎕NNAMES Names of Open Native Files
⎕NNUMS Tie Numbers of Open Native Files
⎕SI State Indicator
⎕SYSID System Identifier
⎕SYSVER System Version
⎕T Tickcount
⎕TC Terminal Control Characters
⎕TCBEL Terminal Control Character, Bell
⎕TCBS Terminal Control Character, Backspace
⎕TCESC Terminal Control Character, Escape
⎕TCFF Terminal Control Character, Form Feed
⎕TCHT Terminal Control Character, Horizontal Tab
⎕TCLF Terminal Control Character, Line Feed
⎕TCNL Terminal Control Character, New Line
⎕TCNUL Terminal Control Character, Null
⎕TS Time Stamp
⎕WA Workspace Available
Monadic or dyadic system functions
⎕AT Attributes
⎕CR Canonical representation
⎕DC Data Conversion
⎕DFT Discrete Fourier Transform
⎕DL Delay or pause APL processing
⎕DR Data representation
⎕EA Execute alternate
⎕EC Execute controlled
⎕ERROR Signal error
⎕ES Event simulate
⎕EX Expunge names
⎕FMT Format
⎕FX Function fix
⎕MF Monitor function
⎕NAPPEND Append data to an open native file
⎕NC Name classification
⎕NCREATE Create and open a native file
⎕NERASE Erase an open native file
⎕NINFO Native file information
⎕NL Name list
⎕NREAD Read data from an open native file
⎕NRENAME Rename an open native file
⎕NREPLACE Replace data in an open native file
⎕NRESIZE Resize an open native file
⎕NSIZE Get the size of an open native file
⎕NTIE Open a native file
⎕NUNTIE Close a native file
⎕STOP Stop execution of a user-defined function/operator/hyperator or Magic Function
⎕TF Transfer form
⎕TRACE Trace execution of a user-defined function/operator/hyperator or Magic Function
⎕UCS Universal character set
⎕VR Vector representation of a function


System Variables
⎕ALX Attention Latent Expression
⎕CT Comparison Tolerance
⎕DM Diagnostic Message (Read-only)
⎕DT Distribution Type
⎕ELX Error Latent Expression
⎕FC Format Control
⎕FEATURE Feature Control
⎕FPC Floating Point Control
⎕IC Indeterminate Control
⎕IO Index Origin
⎕LR Left-Right Direction Choice
⎕LX Latent Expression
⎕PP Print Precision
⎕PR Prompt Replacement
⎕PW Print Width
⎕RL Random Link
⎕SA Stop Action
⎕WSID Workspace Identifier


See Also
System Commands System Variables and Functions Operators


Keyboard
Alt+Shift ⍪ ≡ ≢ ⍒ ⍋ ⌽ ⍉ ⊖ ⍟ ⍱ ⍲ ⍠ ⌹
Alt ⋄ ¨ ¯ < ≤ ∅ ≥ > ≠ ∨ ∧ × ÷
Shift ~ ! @ # $ % ^ & * ( ) _ +
Key ` 1 2 3 4 5 6 7 8 9 0 - =
Alt+Shift ⍷ √ ⍨ ⍸ ⍥ ⍣ ⍞ ⍬ ⊣
Alt ? ⍵ ∊ ⍴ § ↑ ↓ ⍳ ○ π ← → ⊢
Shift Q W E R T Y U I O P { } |
Key q w e r t y u i o p [ ] \
Alt+Shift ∫ ∂ ⌻ ⍢ ⍙ ⍤ ⍫ ⌷
Alt ⍺ ⌈ ⌊ ∞ ∇ ∆ ∘ ‼ ⎕ ⍎ ⍕
Shift A S D F G H J K L : "
Key a s d f g h j k l ; '
Alt+Shift ⊆ ⊇ χ ⍡ ⍭ ⊙
Alt ⊂ ⊃ ∩ ∪ ⊥ ⊤ ⍦ ⍝ ⍀ ⌿
Shift Z X C V B N M < > ?
Key z x c v b n m , . /
NARS 2000 Lang
Tool
Bar 		← → + - × ÷ * ⍟ ⌹ ○ ! ? √ | ⌈ ⌊ ⊥ ⊤ ⊣ ⊢
≡ ≢ < ≤ = ≥ > ≠ ∨ ∧ ⍱ ⍲ ↑ ↓ ⊂ ⊃ ⌷ ⍋ ⍒
⍳ ∊ ⍸ ⍷ ∪ ∩ ⊆ ⊇ ~ § π .. , ⍪ ⍴ ⌽ ⊖ ⍉
/ \ ⌿ ⍀ ⊙ ¨ ⍨ ⍤ ⍣ ⍡ ⍥ ⍦ . ∘ ⍠ ‼ ⌻ ∂ ∫ ⍞ ⎕ ⍎ ⍕
⋄ ⍝ ∇ ∆ ⍙ _ ⍺ ⍵ ¯ ⍬ ∞ ∅
Second Row i j k i j k l g p r v x

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