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What are e numbers used in?

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Anonymous

15y ago
Updated: 8/17/2019

Scientific notation is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation. Scientific notation has a number of useful properties and is often favored by scientists, mathematicians and engineers, who work with such numbers. In scientific notation all numbers are written like this:

a × 10b

Most calculators and many computer programs present very large and very small results in scientific notation. Because superscripted exponents like 107 cannot always be conveniently represented on computers, typewriters and calculators, an alternative format is often used: the letter E or e represents times ten raised to the power, thus replacing the x 10n.


Examples
  • An electron's mass is about 0.00000000000000000000000000000091093822 kg. In scientific notation, this is written 9.1093822×10−31 kg or 9.1093822E−31
  • The Earth's mass is about 5973600000000000000000000 kg. In scientific notation, this is written 5.9736×1024 kg or 5.9736E24
  • The Earth's circumference is approximately 40000000 m. In scientific notation, this is 4×107 m or 4E7
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15y ago

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