Assignment: Difference between revisions

Jump to navigation Jump to search
23 bytes added ,  00:51, 13 February 2022
m
fixed indentation
(added examples and explanation to index assignments)
 
m (fixed indentation)
Line 4: Line 4:
     mat←(1 2 3)(1 2 3)
     mat←(1 2 3)(1 2 3)
     mat
     mat
┌─────┬─────┐
┌─────┬─────┐
│1 2 3│1 2 3│
│1 2 3│1 2 3│
└─────┴─────┘
└─────┴─────┘
     mat[0]←1  ⍝ indexed assignment
     mat[0]←1  ⍝ indexed assignment
     mat
     mat
┌─┬─────┐
┌─┬─────┐
│1│1 2 3│
│1│1 2 3│
└─┴─────┘
└─┴─────┘
     mat←3 3⍴⍳9
     mat←3 3⍴⍳9
     mat
     mat
0 1 2
0 1 2
3 4 5
3 4 5
6 7 8
6 7 8
     mat[0 1;]  ⍝ 1 semicolon is necessary when dealing with 2D arrays, 2 semicolons for 3D arrays etc.
     mat[0 1;]  ⍝ 1 semicolon is necessary when dealing with 2D arrays, 2 semicolons for 3D arrays etc.
0 1 2
0 1 2
3 4 5
3 4 5
     mat[0 1;0 1]←0
     mat[0 1;0 1]←0
     mat
     mat
0 0 2
0 0 2
0 0 5
0 0 5
6 7 8
6 7 8
     ⍝ incrementing (or any dyadic function) parts of an array
     ⍝ incrementing (or any dyadic function) parts of an array
     mat←3 3⍴0
     mat←3 3⍴0
     mat
     mat
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
     mat[0 1;1]+←1
     mat[0 1;1]+←1
     mat
     mat
0 1 0
0 1 0
0 1 0
0 1 0
0 0 0
0 0 0
     mat[1;1],←'x'
     mat[1;1],←'x'
     mat
     mat
0 1 0
0 1 0
0 x 0
0 x 0
0 0 0
0 0 0
5

edits

Navigation menu