Lamp: Difference between revisions

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<h1> {lamp} &mdash; Comment Indicator &mdash; Keystroke ALT+, (Comma) &mdash; Character 9053 or x235D</h1>
<h1> {lamp} &mdash; Comment Indicator &mdash; Keystroke ALT+, (Comma) &mdash; Character 9053 or x235D</h1>
[[File:APLKB-Lamp.png]]
==Alternate Names==
==Alternate Names==
This symbol is also known as <big>comment</big> or APL text symbol '''&#123;comment}''' .
This symbol is also known as <big>comment, thumb,</big> or APL text symbol '''&#123;comment}''' .


==Usage==
==Usage==
The lamp symbol <big>{lamp}</big> is used to add a comment to a typed-in line, whether an immediate execution statement given to the Session Manager or entered into the text of a function. All characters after {lamp} are ignored until the end of the line. The [[diamond]] (<big><big>{diamond}</big></big>) operator cannot be used to start a new line after a <big>{lamp}</big> symbol is used.
The lamp symbol <big>{lamp}</big> is used to add a comment to a typed-in line, whether an immediate execution statement given to the Session Manager or entered into the text of a [[Functions|function]]. All characters after {lamp} are ignored until the end of the line. The [[diamond]] (<big><big>{diamond}</big></big>) operator cannot be used to start a new line after a <big>{lamp}</big> symbol is used. The <big>{lamp}</big> symbol is the functional equivalent of // in C or Object Pascal, or ! in Fortran.
 
==Example==
==Example==
<code><big>
<code><big>
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</big></code>
</big></code>


 
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Latest revision as of 09:46, 20 October 2024

⍝ — Comment Indicator — Keystroke ALT+, (Comma) — Character 9053 or x235D

Alternate Names

This symbol is also known as comment, thumb, or APL text symbol {comment} .

Usage

The lamp symbol ⍝ is used to add a comment to a typed-in line, whether an immediate execution statement given to the Session Manager or entered into the text of a function. All characters after ⍝ are ignored until the end of the line. The diamond (⋄) operator cannot be used to start a new line after a ⍝ symbol is used. The ⍝ symbol is the functional equivalent of // in C or Object Pascal, or ! in Fortran.

Example

      yes←10 ⋄ yes←20
      yes
20
      yes←10 ⍝ more ⋄ yes←20
      yes
10


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

[[Category:Mouse Group {{{1}}}|{{{2}}}]]

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