> At a time when adding two lists of numbers meant a map or a loop, APL introduced the idea of operating on the entire array at once.
Am I missing something, how is this different from a map?
Am I missing something, how is this different from a map?
3 3 3 ⍴ ⍳10
1 2 3
4 5 6
7 8 9
10 1 2
3 4 5
6 7 8
9 10 1
2 3 4
5 6 7
M ← 3 3 3 ⍴ ⍳10
M*M
1.00000E0 4.00000E0 2.70000E1
2.56000E2 3.12500E3 4.66560E4
8.23543E5 1.67772E7 3.87420E8
1.00000E10 1.00000E0 4.00000E0
2.70000E1 2.56000E2 3.12500E3
4.66560E4 8.23543E5 1.67772E7
3.87420E8 1.00000E10 1.00000E0
4.00000E0 2.70000E1 2.56000E2
3.12500E3 4.66560E4 8.23543E5
How many maps did you want?