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# 5.2b - Scientific Notation Floating Point Format 5.2b...

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5.2b Scientific Notation Scientific Notation Floating Point Format a X 10 n where 1 a < 10 Calculators or computers sometimes abbreviate “X 10^” as E NEVER write an E on a test or homework answer! Use “* 10^” ( Show you know !) Computers internally use a X 2 n where 0.1 b a < 1 Computers have “Double Precision”, and sometimes “Extended Precision” (Excel uses double precision) Terms a X 10 n where 1 a < 10 a is called the mantissa n is called the exponent Once upon a time, we used slide rules or log tables to manipulate the mantissas, and just kept track of the exponents manually. Now we use scientific calculators and computers to do the work. Converting Each movement of the decimal place by one digit changes the exponent by 1. You can add as many leading or trailing zeros as you need, in order to move the decimal place far enough. Negative exponents mean that the number is between 1 and 0.

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5.2b - Scientific Notation Floating Point Format 5.2b...

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