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contents of Vector 17.2
www.vector.org.uk >
back issues >
contents of Vector 17.2
Note:
The clues for the crossword contain some APL characters. These are coded as APL2741 (available as a 35K download), and also with <TT> tags. The mapping is compatible with both the APL2000 font and the current Dyalog font.
Across
1. The first element of A, as a scalar
6. The values of x such that (^/(¼½F)¹x)^((½x)=½F)^(1‡F[x])^.‰¯1‡F[x]
8. Resume the function that called the currently suspended function
9. The rank of the shape of F (or is it the shape of the rank?)
10. (N>L)-N<L
12. ³
14. B÷|B+B=0
16. Clear the state indicator
17. (~X¹DG)/X
19. 1ŠB
20. Subtract from the absolute value of M ...
21. Is (non-nested) A numeric?
24. (12‡V),12†V
25. The opposite of '—/'
26. M, all strung out
27. Ÿ/,Z1=20
28. Add the magnitude of K to VM
30. The product of A and ...
31. The result of 9 across
32. ((½B)=+/B)½ŒIO for bit vector B
33. e to the power NVP, times five
36. NX-1|NX
37. Inverse of +\V for vector V
39. The sin of one radian
40. (NE+1)-¼NE in origin 1
41. Assuming V[]„0 and ^/I¹¼½V, do V„(¼½V)¹I
42. Go to the line labelled L1
Down
1. T×0
2. +\RR=RR for vector RR in origin 1
3. ¼0 if AE is numeric; '' if AE is character
4. ŒNL 3
5. Multiply alternate elements of A, whose shape is PTB, by the two values in M
6. ”S without using ”
7. 10-FLEXט10÷FLEX
8. Branch to the line labelled P if D is positive, to Z if zero, to N if negative
11. Is the answer obvious?
13. ((SE¬0)>SE¹K)/SE
15. -V11-BG
18. M2 is not an element of ...
22. 0=(M[;1]^N[;1])-(M[;2]^N[;2]) for two-column matrices M and N
23. The sum of all but the first X elements of I, but no less than zero
27. e+e
28. ''½“V
29. (B×B)*.5
30. -A
33. Pi less than 5
34. ²(-N)‡L
35. ((V0/¼½V0),ŒIO+½V0)[ŒIO]
37. V1 gets ...
38. MAT, less one dimension
Reprinted with kind permission from Zark APL Tutor News, a quarterly publication of Zark Incorporated, 23 Ketchbrook Lane, Ellington, CT06029, USA