New Crossword Puzzle and 20.1 Solution

Transcribed from the printed issue; not yet reviewed. Read it in the PDF of the issue, page 34

New Crossword¶

Across¶

1. Start with a blank slate
2. Preserve your work
3. (|K)×(⌈RL), expressed as words
4. The location in vector E of the elements in K[⍳VA]
5. The magnitude of the elements of the cumulative sum of the reciprocal of S
6. 2↑⍎'''R5↓3'''
7. ⎕__, the current “seed” of the random number generator
8. Release storage from suspensions
9. List of all suspended identifiers
10. 1÷VEC
11. (ρS)ρ1
12. )___ when done
13. (+/E)ρYPV for positive integer vector E, scalar YPV
14. ⎕__, for timing algorithms
15. List of all suspended functions
16. MP+1|-MP
17. Delete a stored workspace
18. Branch to line labelled MB
19. One random element of ⍳W
20. (V⍳AC)=⎕IO+ρV
21. (LTO↓JS),LTO↑S for positive scalar LTO
22. ⎕IO++/∧\L≠OV for vector L, scalar OV
23. 0 if RLM=I, 1 if RLM>I, ¯1 if RLM<I
24. ((POP,(ρN)-POP)/1 0)/N
25. 2⍟×\XSρ2 in origin 1
26. ∨/BD∘.=PAYRL for vector PAYRL

Down¶

1. +\(1++/∧\S≠5)ρ1 for vector S, ⎕IO=1
2. Names of arrays in the workspace
3. V[LI+⍳CE] for scalar LI
4. Format to E decimal places ...
5. A-A×⌊(|R)÷A
6. (E+F×RK)÷F
7. (⌽⍳ρρLSTC)⍉LSTC
8. Delete from active workspace
9. ⎕__, all available characters
10. Cumulative product of SV
11. Divide into R the lesser of EE or S
12. Replace active workspace
13. Number of identifiers tracked in the active workspace
14. (⌈MTRX[;1])=(⌈MTRX[;2]) for two-column MTRX
15. (~FIR∊LPP)/FIR
16. ⎕__, maximum number of significant digits to display
17. Retrieve objects without erasing or over-writing current objects
18. V+.×⌽I*(⍳ρV)-⎕IO for scalar I
19. Name of active workspace
20. (⍳ρOA)=______ to flag first of each distinct value in vector OA
21. Branch to line labelled L if ...
22. A random number from 1 to J-B , in origin 1
23. The elements (simple vector) of the first V items of nested vector R in APL2 notation
24. M[(1+ρM)-⍳ρM] in origin 1
25. ⎕__, the names of workspace objects

Solution to Crossword in 20.1¶