1
2#SI prefixes
3yotta = 1e24
4zetta = 1e21
5exa = 1e18
6peta = 1e15
7tera = 1e12
8giga = 1e9
9mega = 1e6
10kilo = 1e3
11hecto = 1e2
12deka = 1e1
13deci = 1e-1
14centi = 1e-2
15milli = 1e-3
16micro = 1e-6
17nano = 1e-9
18pico = 1e-12
19femto = 1e-15
20atto = 1e-18
21zepto = 1e-21
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23#binary prefixes
24kibi = 2**10
25mebi = 2**20
26gibi = 2**30
27tebi = 2**40
28pebi = 2**50
29exbi = 2**60
30zebi = 2**70
31yobi = 2**80
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