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Tables of standard numerical calculations (5,8)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,077 — 2021-11-16 00:00:16
  1A: Old handbook of tables giving precalculated values (5,8)
• Quick crossword No 15,561 — 2020-03-23 00:00:20
  3D: Tables of standard numerical calculations (5,8)