piPrimes requires a 68020 cpu or better (it will not run on a MacPlus).
piPrimesppc requires any PowerMac.
Minimum system (macOS): 7.0.1 (perhaps late systems 6 can also run it, but I wouldn't bet on it).
Getting started:
• Choose what you want to calculate with the buttons on the right of the piPrimes Window
• According to your choice, enter the requested input(s):
– the number of digits for π and e (the base of natural log) up to 29000
– an integer number for the factorial up to 8300!
– the lower and higher bounds where you want to search for prime numbers
(white spaces may be used in the input to facilitate the reading)
• Press or click the "Compute" button. The result will be displayed in a new window.
• The results may be saved to a file.
Important Remarks:
The result window can hold only about 30000 characters. That said, if you specify a range too wide for the primes search, the result output may be truncated.
Arbitrary precision arithmetics is time consuming! Before venturing with huge numbers
(10000 digits of π, 3000!, whether 100 000 000 003 is a prime or not) try first with smaller ones.
The reaction time (for instance, reaction to a . to stop the computation) may be very slow.
This program uses the Multiprecision Package MPFUN by David H. Bailey (RNR Technical Report 90-022, NASA Ames Research Center, May 18, 1993)
This program is free. It may not be sold, nor offered as an inducement as part of an other product. It may not be distributed on shareware volumes without explicit permission of the author. The copyright to the program resides, and stays, with the author. The program may be distributed freely, as long it remains unaltered. The program is offered to you as is. I take no responsibility for any data loss or corruption or any other damage caused directly or indirectly by this product.
Comments are welcome at <isabel.georges@wanadoo.fr>
