Lamp: Difference between revisions
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[[File:APLKB-Lamp.png]] | [[File:APLKB-Lamp.png]] | ||
==Alternate Names== | ==Alternate Names== | ||
This symbol is also known as <big>comment</big> or APL text symbol '''{comment}''' . | This symbol is also known as <big>comment, thumb,</big> or APL text symbol '''{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 [[ | 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> | ||
| Line 18: | Line 19: | ||
</big></code> | </big></code> | ||
{{Article footer}} | |||
{{ | {{Symbol footer|11|L}} | ||
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}}}]]
