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issues > contents of Vector 21.2
www.vector.org.uk > back
issues > contents of Vector 21.2
Across
1. How to turn PL or AL into APL
11. One random number from (-N),(-2×N),(-3×N),...,(-L×N) to EV, without multiplying
12. +/(R=R)/CP for vector R, scalar CP
13. Round elements of vector B down to nearest integer; rotate left N places
14. Z>0 for non-negative Z
16. (L=KO)¼1 for vector L, scalar KO
17. M-EטM÷E
18. Cumulative sum of the absolute values of the numbers in the vector Y
20. D[¼3]
21. 'ROAD'~'AEIOU'
22. Any
23. +/W½Q for scalars W and Q
25. 3‡2²'QUEUE'
26. Round to the nearest integer
27. )__ is the same as )RESET
29. ~K¹2
30. (ln B) - (ln T)
31. Ÿ
33. V†U?U where VˆU
35. (*1)*N
37. )__ to see what’s suspended
39. Circumference of N circles, diameter D
41. Ÿ/,V
42. The larger of U or minus N
44. Œ__ sets significant display digits
45. BI formatted to F[2] decimal places in a width of F[1] characters
46. Indices of negatives in vector G, where C„G<0
48. —/A,T for scalar A, vector T
49. Branch of math with which ± deals
Down
1. The only dyadic operator in std. APL
2. ((D×D)*0.5)[²¼½D]×N
3. S+(1|M)-M
4. E distinct random numbers from ¼B
5. Use Œ__ to regenerate random numbers
6. Œ__ tells whether a fn or var
7. World’s most concise notation
8. O,(O+O),(O+O+O) (note: the letter O)
9. Pad vector Q to length K and reshape to matrix with shape R
10. APL: A ____________ Language
14. Running product
15. Remainder from W÷Z
18. Sum of 52 distinct random numbers from ¼N
19. Raise SB to the power D; multiply by Y
22. (MAT____)šMAT to return all rows of MAT except those matching vector V
24. (÷N)×QI
26. K-1|K
28. Œ__ can alter the result of A>B
32. ''½”R
34. *(µU)+µP
36. (+/B)‰((B×R)~0)¼S for bit vector B, nonzero vector R
38. (D-1),(D-2),...,(D-I)
40. P times pi
41. Round T up to nearest integer and format to one decimal place
43. +\N†G for positive scalars N and G
45. (¼0)½(F<E)²F,E for scalars F and E
47. … : __ to
48. 'PAM'~'AP'[ŒIO+TIME>1200] for TIME„100ƒ2†3‡ŒTS yesterday morning
