log of 2.000000 is 0.693147
log of 1.000000 is 0.000000
0.000000: 00000000000000000000 0.000000
-1.000000: BFFF8000000000000000 -1.000000
1.000000: 3FFF8000000000000000 1.000000
2.000000: 40008000000000000000 2.000000
4.000000: 40018000000000000000 4.000000
0.500000: 3FFE8000000000000000 0.500000
0.250000: 3FFD8000000000000000 0.250000
0.125000: 3FFC8000000000000000 0.125000
3.141593: 4000C90FDAA22168C000 3.141593
10000.000000: 400C9C40000000000000 10000.000000
22000.000000: 400DABE0000000000000 22000.000000
44100.000000: 400EAC44000000000000 44100.000000
65536.000000: 400F8000000000000000 65536.000000
134072.768000: 401082EE3126E978D800 134072.768000
3540001.900000: 4014D810879999999800 3540001.900000
4294967295.000000: 401EFFFFFFFF00000000 4294967295.000000