# Difference between revisions of "Dictionary:Floating point"

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A number expressed by the significant figures times a base raised to a power. Thus 139 000 might be written as 1.390×10<sup>5</sup> to indicate four significant figures. Writing numbers in floating-point format prevents the loss of significant figures in case the number becomes too small or too large for a fixed register. Computers usually use bases that are a power of 2 rather than the base 10. | A number expressed by the significant figures times a base raised to a power. Thus 139 000 might be written as 1.390×10<sup>5</sup> to indicate four significant figures. Writing numbers in floating-point format prevents the loss of significant figures in case the number becomes too small or too large for a fixed register. Computers usually use bases that are a power of 2 rather than the base 10. | ||

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## Latest revision as of 14:41, 2 March 2017

A number expressed by the significant figures times a base raised to a power. Thus 139 000 might be written as 1.390×10^{5} to indicate four significant figures. Writing numbers in floating-point format prevents the loss of significant figures in case the number becomes too small or too large for a fixed register. Computers usually use bases that are a power of 2 rather than the base 10.