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#include <u.h>
#include <libc.h>
// dbW to Watts
void
main(int argc, char **argv)
{
double d;
if (argc != 2) {
fprint(2, "usage: dbw value\n");
exits("usage");
}
d = pow(10, strtod(argv[1], 0)/10.0L);
print("%g\n", d);
exits(0);
}
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