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Server : LiteSpeed System : Linux srv104790275 5.15.0-161-generic #171-Ubuntu SMP Sat Oct 11 08:17:01 UTC 2025 x86_64 User : dewac4139 ( 1077) PHP Version : 8.0.30 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory : /usr/share/doc/bc/examples/ |
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/* An example that finds all primes between 2 and limit. */
define primes (limit) {
auto num, p, root, i
prime[1] = 2;
prime[2] = 3;
num = 2;
if (limit >= 2) print "prime 1 = 2\n"
if (limit >= 3) print "prime 2 = 3\n";
scale = 0;
for ( p=5; p <= limit; p += 2) {
root = sqrt(p);
isprime = 1;
for ( i = 1; i < num && prime[i] <= root; i++ ) {
if ( p % prime[i] == 0 ) {
isprime = 0;
break;
}
}
if (isprime) {
num += 1;
prime [num] = p;
print "prime ", num, " = ", p, "\n"
}
}
}
print "\ntyping 'primes (10)' will print all primes less than 10.\n"