Oblicz połowę liczby 2^15 - 4
^-oznacza potege czyli 2 do potegi 15 minus 4
2^15-4 = 2^11 = 2^10 * 2 = 1024 *2
teraz:
1024 * 2
-------------=1024
2
lub
2^15 -2^2 =2^2*2^13-2^2=2^2(2^13-1)=
=4(2^13-1)
4(2^13-1)/2 = 2(2^13-1)
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2^15-4 = 2^11 = 2^10 * 2 = 1024 *2
teraz:
1024 * 2
-------------=1024
2
lub
2^15 -2^2 =2^2*2^13-2^2=2^2(2^13-1)=
=4(2^13-1)
4(2^13-1)/2 = 2(2^13-1)