⍝ Unsigned from signed integer:

    8 uns ¯3 to 3                         ⍝ unsigned byte values.
253 254 255 0 1 2 3

    hex ¯3 to 3                           ⍝ hex of signed values,
┌──┬──┬──┬──┬──┬──┬──┐
│fd│fe│ff│00│01│02│03│
└──┴──┴──┴──┴──┴──┴──┘
    hex 8 uns ¯3 to 3                     ⍝ same as hex of unsigned values.
┌──┬──┬──┬──┬──┬──┬──┐
│fd│fe│ff│00│01│02│03│
└──┴──┴──┴──┴──┴──┴──┘
    8 int 8 uns ¯3 to 3                   ⍝ full circle.
¯3 ¯2 ¯1 0 1 2 3

⍝ alternative definitions:

    uns←{256|256+⍵}                         ⍝ unsigned from integer.

    int←{¯128+256|128+⍵}                    ⍝ integer from unsigned.
    uns ¯3 to 3
253 254 255 0 1 2 3

    hex ¯3 to 3                             ⍝ hex of signed ints,
┌──┬──┬──┬──┬──┬──┬──┐
│fd│fe│ff│00│01│02│03│
└──┴──┴──┴──┴──┴──┴──┘
    hex uns ¯3 to 3                         ⍝ same as hex of uns.
┌──┬──┬──┬──┬──┬──┬──┐
│fd│fe│ff│00│01│02│03│
└──┴──┴──┴──┴──┴──┴──┘
    int uns ¯3 to 3                         ⍝ full circle.
¯3 ¯2 ¯1 0 1 2 3

    uns←{65536|65536+⍵}                     ⍝ unsigned from 16-bit integer.

    int←{¯32768+65536|32768+⍵}              ⍝ integer from  16-bit unsigned.

      ¯30000 ¯20000 to 30000
¯30000 ¯20000 ¯10000 0 10000 20000 30000

    uns ¯30000 ¯20000 to 30000
35536 45536 55536 0 10000 20000 30000

    int uns ¯30000 ¯20000 to 30000
¯30000 ¯20000 ¯10000 0 10000 20000 30000

    4 hex 16 uns ¯3 to 3                    ⍝ hex of uns,
┌────┬────┬────┬────┬────┬────┬────┐
│fffd│fffe│ffff│0000│0001│0002│0003│
└────┴────┴────┴────┴────┴────┴────┘
    4 hex ¯3 to 3                           ⍝ same as hex of uns.
┌────┬────┬────┬────┬────┬────┬────┐
│fffd│fffe│ffff│0000│0001│0002│0003│
└────┴────┴────┴────┴────┴────┴────┘

    8 uns 8 int  2 3 4⍴256-⍳24              ⍝ ok for higher rank arrays.
255 254 253 252
251 250 249 248
247 246 245 244
               
243 242 241 240
239 238 237 236
235 234 233 232

    8int 8uns ↑,∘⊂/-⍳5                      ⍝ ok for nested arrays.
┌──┬───────────────┐
│¯1│┌──┬──────────┐│
│  ││¯2│┌──┬─────┐││
│  ││  ││¯3│¯4 ¯5│││
│  ││  │└──┴─────┘││
│  │└──┴──────────┘│
└──┴───────────────┘

⍝∇ int uns hex to

Back to: code

Back to: Workspaces