Fudge factor

A fudge factor is an ad hoc quantity or element introduced into a calculation, formula or model in order to make it fit observations or expectations. Also known as a correction coefficient, which is defined by

\kappa _{\text{c}}={\frac {\text{experimental value}}{\text{theoretical value}}}

Examples include Einstein's cosmological constant, dark energy, the initial proposals of dark matter and inflation.^[1]

^ Donald Goldsmith (1997), Einstein's Greatest Blunder?: The Cosmological Constant and Other Fudge Factors in the Physics of the Universe, Harvard University Press, ISBN 9780674242425

[1] Donald Goldsmith (1997), Einstein's Greatest Blunder?: The Cosmological Constant and Other Fudge Factors in the Physics of the Universe, Harvard University Press, ISBN 9780674242425

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Fudge factor

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