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contents of Vector 17.4
www.vector.org.uk >
back issues >
contents of Vector 17.4
Apology: There were a couple of typos on this page which have been pointed out to us; sorry. 6 down mis-spelled Lawrence Welk as Wall; 8 down should have been The greater of BV or M; and 19 and 20 down were marked one square too far left. These have now been corrected.
Note:
The clues for the crossword contain some APL characters. These are coded as APL2741 (available as a 32K download as a Truetype font, or a 78K Postscript Type 1 version), and also with <TT> tags. The mapping is compatible with both the APL2000 font and the current Dyalog font.
Across
1. (~V¹N)/V
4. The elements of vector C that satisfy condition A1 or condition B
12. The characters used to represent the number KC
13. How many of the leading numbers in the list V are greater than 99?
14. Œ_3returns the names of all existing functions
15. Alternating sum of B
16. The larger of S or ...
17. Index of the first row of M that contains vector V
21. T[I]-+/I†mrv for I from 1 to ½T (origin 1)
22. S×(7÷S)-¼7÷S
23. 3 4+.*2
24. AA[(1+½AA)-¼½AA] in origin 1
25. The 256 different characters
27. How many elements in the same-length vectors VT and V are the same?
30. Pick a number form 1 to 10
32. ((E×E)ׯ1)+V5
34. (A×X*2)+(B×X)+C, all scalars
36. (5 10+.*3 2)*.5
37. The remainder of M when dividing by S
38. One of the two system commands that can increase ŒWA when the state indicator is empty
41. Rotate vector D to the left P places; stick R on the front of it; grab the first M elememts;
and reassign R
42. A constant is not ________
Down
1. Format N to V decimal places
2. (T5¼KL)=ŒIO+½T5
3. A has a value if 2=Œ__ 'A'
4. Drop the trailing elements of vector V that equal B
5. (B\A)/MAT
6. Lawrence Welk: “A __ a two and a ...”
7. The bits used to drop from V (via /) the characters before substring S
8. The greater of BV or M
9. In addition to }‰]œ are __
10. ... replicates 9
11. 17’s, C9 of them
15. ³'-(+'
18. Attach vector VCR to the left of matrix R, and add VRA to the result
19. The APL developer’s second-to-last system command at the end of the day
20. (ŒIO-1)++\((V×V)*.5)½1
23. 20 different random numbers from the set ¼XS
25. Does the number entered equal the alternating sum of the vector (S‡A),S†A (for positive S)
26. Subtract the array T0AM from itself, reshape the
result to have shape ¼0, and reassign it
28. ++/6 9 3
29. All of the vector ZE but its first 125 numbers
31. The sum of the magnitude of the numbers in the vector R
33. e
35. (×/½ERA)½ERA
39. Application program interface (abbr.)
40. (›'')½¨'EASY' 'DOOR' 'BOLT'
