Rho
⍴ — Shape or Reshape — Keystroke ALT+r — Character 9076
Note: This is ALT+r; ALT+SHIFT+R will generate the symbol root (√).
Reshape
|
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| L is a scalar or vector of non-negative integers, and R is an arbitrary array. | ||||
| If the right argument is empty, the result consists of ×/⍴L copies of the fill item of R. |
For example, in origin-1
2 3⍴⍳6
1 2 3
4 5 6
2 3⍴⍳0
0 0 0
0 0 0
The idea for the latter enhancement was taken from Dyalog APL.
Shape
The symbol ⍴ used with no left argument returns the size or dimensions of a scalar, string, vector, array or matrix.
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See Also
{{#ifeq:{{{en}}}|4||title="match" style="border-width:thick; border-color:blue; background-color:yellow;"|≡ {{#ifeq:{{{en}}}|7||title="iota" style="border-width:thick; border-color:blue; background-color:yellow;" |⍳ {{#ifeq:{{{en}}}|9||title="slash" style="border-width:thick; border-color:blue; background-color:yellow;" |/ {{#ifeq:{{{en}}}|11||title="diamond" style="border-width:thick; border-color:blue; background-color:yellow;" |⋄ {{#switch: {{{en}}}| NARS 2000 Lang Tool Bar {{#ifeq:{{{en}}}|1||title="assign" style="border-width:thick; border-color:blue; background-color:yellow;" |← |
→ | bgcolor=cyan | title="assign" |← | → | }}
{{#ifeq:{{{en}}}|2||title="plus" style="border-width:thick; border-color:blue; background-color:yellow;" |+ |
- | × | ÷ | * | ⍟ | ⌹ | ○ | ! | ? | √ | bgcolor=cyan | title="plus" |+ | - | × | ÷ | * | ⍟ | ⌹ | ○ | ! | ? | √ | }}
{{#ifeq:{{{en}}}|3||title="mod" style="border-width:thick; border-color:blue; background-color:yellow;" || |
⌈ | ⌊ | ⊥ | ⊤ | ⊣ | ⊢ | |||||||||||||||||||
| ⌈ | ⌊ | ⊥ | ⊤ | ⊣ | ⊢ | ||||||||||||||||||||||||||||||||||||||||||||||||
| ≢ | < | ≤ | = | ≥ | > | ≠ | bgcolor=cyan | title="match" |≡ | ≢ | < | ≤ | = | ≥ | > | ≠ | }}
{{#ifeq:{{{en}}}|5||title="down caret" style="border-width:thick; border-color:blue; background-color:yellow;" |∨ |
∧ | ⍱ | ⍲ | bgcolor=cyan | title="down caret" |∨ | ∧ | ⍱ | ⍲ | }}
{{#ifeq:{{{en}}}|6||title="take" style="border-width:thick; border-color:blue; background-color:yellow;" |↑ |
↓ | ⊂ | ⊃ | ⌷ | ⍋ | ⍒ | ||||||||||||||||||||||
| ↓ | ⊂ | ⊃ | ⌷ | ⍋ | ⍒ | ||||||||||||||||||||||||||||||||||||||||||||||||
| ∊ | ⍸ | ⍷ | ∪ | ∩ | ⊆ | ⊇ | ~ | § | π | .. | bgcolor=cyan | title="iota" |⍳ | ∊ | ⍸ | ⍷ | ∪ | ∩ | ⊆ | ⊇ | ~ | § | π | .. | }}
{{#ifeq:{{{en}}}|8||title="comma" style="border-width:thick; border-color:blue; background-color:yellow;" |, |
⍪ | ⍴ | ⌽ | ⊖ | ⍉ | ||||||||||||||||||||||||
| ⍪ | ⍴ | ⌽ | ⊖ | ⍉ | |||||||||||||||||||||||||||||||||||||||||||||||||
| \ | ⌿ | ⍀ | ⊙ | ¨ | ⍨ | ⍤ | ⍡ | ⍥ | ⍦ | . | ∘ | ⍠ | ‼ | ⌻ | ∂ | ∫ | bgcolor=cyan | title="slash" |/ | \ | ⌿ | ⍀ | ⊙ | ¨ | ⍨ | ⍤ | ⍣ | ⍡ | ⍥ | ⍦ | . | ∘ | ⍠ | ‼ | ⌻ | ∂ | ∫ | }}
{{#ifeq:{{{en}}}|10||title="quotequad" style="border-width:thick; border-color:blue; background-color:yellow;" |⍞ |
⎕ | ⍎ | ⍕ | |||||||||||||
| ⎕ | ⍎ | ⍕ | |||||||||||||||||||||||||||||||||||||||||||||||||||
| ⍝ | ∇ | ∆ | ⍙ | _ | ⍺ | ⍵ | bgcolor=cyan | title="diamond" |⋄ | ⍝ | ∇ | ∆ | ⍙ | _ | ⍺ | ⍵ | }}
{{#ifeq:{{{en}}}|12||title="neg" style="border-width:thick; border-color:blue; background-color:yellow;" |¯ |
⍬ | ∞ | title="neg" |¯ | ⍬ | ∞ | ∅ | |||||||||||||||||||||||||||||||
| colspan=8 |Second Row | i j k | a | b | e | g | p | r | v | x | z | colspan=8 |Second Row | i j k | a | b | e | g | p | r | v | x | z | colspan=8 |Second Row | i j k | a | b | e | g | p | r | v | x | z | colspan=6 |Second Row | i j k | i j k l | g | p | r | v | x
}} | |||||||||||||
