A method of expressing very large or very small numbers as a product of a decimal number between 1 and 10 and a power of 10. The format is a × 10^n where 1 ≤ |a| < 10 and n is an integer.
The term emerged in the early 20th century as scientists needed a standardized way to express extreme measurements. 'Scientific' refers to its widespread adoption in scientific fields, while 'notation' comes from Latin 'notare' meaning 'to mark' or 'note down'.
Scientific notation is humanity's way of taming the infinite! It lets us write the number of atoms in the observable universe (about 10^82) and the size of a proton (about 10^-15 meters) with equal elegance, making the cosmos mathematically manageable.
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