![]() =1.079775 – or each step is 7.9775% larger than the last. The numbers so expressible with an exponent equal to b span a single decade, from 10 b to 10 b + 1. More generally, to write a number in the form a × 10 b, where 1 < a < 10 and b is an integer, is to express it in scientific notation, and a is called the significand or the mantissa, and b is its exponent. 007 is denoted alternatively by 7.0 × 10 -3 then it is said that the number is represented in scientific notation.
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