268=256十12=(10c)16
268=64×4十8×1十4=(414)8
=(100001100)2
(365.234)8=(011110101.010011100)2
(A3f.46)16=10X16^2+3X16+15+4/16+6/16^2=(2623.265625)10
=2^11(=2048)+2^9(=512)+2^5(=32)+2^4(=16)+2^3(=8)+2^2(=4)+2+1+1/2^2(=0.25)+1/2^6(=0.015625)
=(10100011111.010001)2