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The ZARK Crosswords — 20.3 Solution and New Crossword

Vector 20:4, page 29

competitions and puzzles

Transcribed from the printed issue; not yet reviewed. Read it in the PDF of the issue, page 29

Solution to Crossword in 20.3

The completed 12 by 12 crossword grid from Vector 20.3, filled with APL symbols, names and digits; row 1 reads C L [ C S ⍋ C L ; ] and A, and the bottom row reads P R O G R A M M I N G

New Crossword

The empty 12 by 12 crossword grid, numbered 1 to 42

Across

  1. APL, to the confused Greek novice
  2. 1|PIF
  3. ⎕__ to pause awhile
  4. (⌽C)≥T without using >, ≥, <, ≤
  5. ⎕__ to show a function as a character matrix
  6. 2|N tells whether integer A is ___
  7. (+/ER)⍴2 for positive integer vector ER
  8. (-M)+M=M
  9. Is N at least as big as e raised to the R power?
  10. The magnitude of the sum of V and each of the first five elements of BU
  11. *(⍟ED)-(⍟LTH), the easy way
  12. Rank (number of dimensions) of T
  13. 'FLAPPABLE' ~ 'APL'
  14. Ratio of M to A, displayed to BR places
  15. B random numbers from OC-VC to OC-1
  16. Area of rectangle GA wide by T long
  17. ''⍴(R/⍳⍴R),⎕IO+⍴R for bit vector R
  18. (×/⍴T)⍴T+2
  19. (0,I)[⎕IO+T] for numeric scalar I, bit vector T
  20. ⎕__ returns the available characters
  21. round the elements of M to the nearest integer
  22. "→" ~ 'TO'
  23. W⍴-S×Y for scalars W, S, Y
  24. ⌹ uses the method of _____

Down

  1. ∧/4 1 ...
  2. ⎕__, number of significant digits to display
  3. Keyboard abuse: “___ Enter”
  4. Flag elements of matrix AF matching scalar E
  5. Remainder of H÷TR subtracted from B
  6. Smallest number in vector V or scalar E
  7. Two more than vector KR. rotated TP to the left
  8. )____ is the same as )RESET
  9. APL has consistent order __ execution
  10. ⍋V and ⍋⍋V are _____ of ⍳⍴V
  11. VV∊DBC for 1=⍴⍴DVC, LD„⍴DBC, ⎕IO←1
  12. Turn the reciprocal of the cumulative product of G into a matrix with shape B and subtract it from C.
  13. D raised to the power 1÷(¯1+E)
  14. Number of rows in MAT
  15. ⎕__ is the “seed” for generating random numbers
  16. Random integer from T+1 to 20, ⎕IO=1
  17. BC,[2]Q[;5/⍳1↓⍴Q]
  18. Character representation of numeric G
  19. +/V×S, V a vector, S a scalar
  20. +/T,SU for scalars T and SU
  21. Smallest number in vector S
  22. M,[2]((1↑⍴M),1)⍴A for matrix M, scalar A
  23. ⎕__ is the space remaining
  24. SC, MN, HR, DY, WK, MN, __, DC, CN, ML