APL Wiki logo: Difference between revisions

APL Wiki logo (view source)

175 bytes removed , 21:49, 7 January 2020

4,493

edits

@@ Line 203: / Line 203: @@
 1
 </source>
-Since we want the offsets paird up with themselves, we can use <source lang=apl inline>⍨</source> again:
+Since we want the offsets paired up with themselves, we can use <source lang=apl inline>⍨</source> again:
 <source lang=apl>
              ,⍤0⍤0 1⍨⍳3
@@ Line 219: / Line 219: @@
 </source>
 The offset pairs form our circle locations:
-       ⍴locs←indices⌷⍤0 1⊢offsets
+       ⍴locs←,⍤0⍤0 1⍨offsets
 5 2
 </source>
-that is, it is a 3D array with 5 layers, 5 rows in each layer, and 2 columns in each row. The [[Rank operator]] (<source lang=apl inline>⍤</source>) allows me to specify that I want rank 0 sub-arrays on the left paired up with rank-1 sub-arrays on the right. Each row of our result represents an <math>(x,y)</math> value. The first and last layers, which represents the leftmost and rightmost columns of the logo, are:
+that is, it is a 3D array with 5 layers, 5 rows in each layer, and 2 columns in each row. Each row of our result represents an <math>(x,y)</math> value. The first and last layers, which represents the leftmost and rightmost columns of the logo, are:
 <source lang=apl>
        (1↑locs) (¯1↑locs)