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Engineering notation

Engineering notation or engineering form (also technical notation) is a version of scientific notation in which the exponent of ten is always selected to be divisible by three to match the common metric prefixes, i.e. scientific notation that aligns with powers of a thousand, for example, 531×10 instead of 5.31×10 (but on calculators is often written in E notation – with "E" instead of "×10" to save space) to represent 531,000.

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