Sun, 13 Jan 2002 21:14:31 +0100 wenzelm tuned;
Sun, 13 Jan 2002 21:14:14 +0100 wenzelm prime_dvd_power_two;
Sun, 13 Jan 2002 21:13:59 +0100 wenzelm symbolic syntax for x^2 (faills back on plain infix "^");
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