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5 p: y Improved |
initial writing: 2009-11-04 |
5 p: y (totient function; the number of numbers relatively prime to y) is now faster. The following benchmarks illustrate the improvements.
timer=: 6!:2 y=: 2x+i.1e5 timer '5 p: y' NB. J7.01 0.796005 timer '5 p: y' NB. J6.02 2.7178