About FIX, FEI

Like ETH and wei in Ethereum, FIX and fei are used in the Token API.

1 FIX	= 1,000,000,000,000,000,000 fei = 1 (EXA)FEI
1 (MILLI)FIX = 0.001 FIX	= 1,000,000,000,000,000 fei = 1 (PETA)FEI
1 (MICRO)FIX = 0.000001 FIX	= 1,000,000,000,000 fei = 1 (TERA)FEI
1 (Nano)FIX = 0.000000001 FIX	= 1,000,000,000 fei = 1 (GIGA)FEI
1 (PICO)FIX = 0.000000000001 FIX	= 1,000,000 fei = 1 (MEGA)FEI
1 (FEMTO)FIX = 0.000000000000001 FIX	= 1,000 fei = 1 (KILO)FEI
1 (ATTO)FIX = 0.000000000000000001 FIX	= 1 FEI