242 A. UNITS AND SCIENTIFIC NOTATION
Note that one could use scientific notation to write the same number in several different
ways. You should verify for yourself that the following is true:
9:75 ˆ 10
7
D 975 ˆ 10
5
D 0:00975 ˆ 10
10
D 97500000000 ˆ 10
´3
: (A.6)
Clearly, the last two possibilities look a bit silly, but we try to avoid even the second version.
When using scientific notation, it is customary to pick whatever power of 10 is needed in order
to have one and only one digit to the left of the decimal place.
A.3 REFERENCES
John Beaver. e Physics and Art of Photography, Volume 3: Detectors and the Meaning of Digital.
IOP Publishing, 2018. DOI: 10.1088/2053-2571/aaf0ae 239
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