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2
SCIENTIFIC NOTATION
The population of the earth is about 3.6 billion people.
9
3.6 billion
=
3,600,000,000
=
3.6 x 10 .
I
\
"ordinary" notation
"scientific" notation
The rest mass of the hydrogen atom is about
-21
1.
67 x 10
kilogram.
Scientific notation is simply a shorthand way of expressing very large or very
small numbers. In scientific notation a number is represented by a mantissa
and an exponent.
3.6 x 109 .....
~---------exponent
mantissa)
For more information on scientific notation, see Appendix B.
The above scientific notation is shown as it appears in math and science
literature. A slightly different form is used in the 1155.
The
I p
~ ~ ~
rl
key instructs the 1155 to print in scientific notation.
For example,
8[J0GGlp~~~rl
1.OOOOOOOOOOOE+03
1.OOOOOOOOOOOE+03
. !
~
mantissa
exponent
2-1
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