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contents of Vector 15.2
www.vector.org.uk >
back issues >
contents of Vector 15.2
Note:
The clues for the new crossword contain some APL characters. These are coded as APL2741 (available as a 45K download), and also with <CODE> tags. The mapping is compatible with both the APL2000 font and the current Dyalog font.
Across
1. Reverse the elements in the vector L
4. Delete from the vector N the even numbers 2 to 100
9. Scale up the numbers in the matrix M by 100000, and return as a vector
12. Fifty-five fives
13. The sum of the absolute value of the vector NV summed with the magnitudes of the first R elements of V
16. The N by N identity matrix (1s on the diagonal)
17. Get outta here!
18. Flag the rows of the 15-column character matrix CMI that match the first fifteen elements of CV
20. A random positive integer no more than 20 bigger than A
21. The amount to subtract from T to make it the next higher integer
23. Given N, a vector of integers, map all values from 1 to 7 to the numbers 0 to 6
26. Find the first four in F fast
27. Whats currently localized?
28. Transform the matrix of scores S from students by exams, to exams by students and cap the scores at 100
30. (N+1)-N, without using
31. Squeeze all 0s from the vector V
34. (M)(1M)/V for the matrix M and the vector V
37. E (bits) if the vector N is empty, otherwise (E)1
38. Divide each row of NM by the vector E, where SNM
39. Repeat each column of M, C times
40. (M)(0), for character M
41. 32/2'ICE CREAM'
Down
1. 2-(VECn[C] in origin 1
2. Convert the bit vector LE, having length M, to the designated indices
3. Flag those values of A that are contained in the matrix NT and for which the corresponding values in the non-negative integer array N are nonzero
4. How many 27s are there in each row of the matrix NM?
5. 1 2 3 4 5, five times
6. From the first N values in T, flag those that arent multiples of five
7. The indices of the vector V
8. 110
10. Generate NI ( a multiple of 5) random numbers between 0 and 4, having the same frequency of each value
11. (V[1]+L),(V[2]+L),(V[3]+L), ...
14. Which elements in R are 10s?
15. +/4
17. Branch to the line labelled V if I is a scalar
19. -F1-C
22. 'T',0T40
24. Change the sign of S
25. A random index into the vector S, up to the index at which the shape of M is found
28. Transpose the matrix NM along the MINOR diagonal
29. The number of whole multiples of C in NM
32. None
33. (M)0, for numeric M
34. Transform NM from shape (6 3 4) to shape (4 3 6)
35. Unfinished business
36. If MAT were demoted
Reprinted with kind permission from Zark APL Tutor News, a quarterly publication of Zark Incorporated, 23 Ketchbrook Lane, Ellington, CT06029, USA