Rationalize

Available

Converts a decimal number to a rational approximation.

Forms

Rationalize[x]

Rationalize[x, dx]

Verified examplesRationalize[0.5] → 1/2 Rationalize[0.333333] → 0.333333 Rationalize[0.25] → 1/4 Rationalize[3] → 3 Rationalize[0.333333, 0.0001] → 1/3 Rationalize[0.333333, 0.00001] → 1/3 Rationalize[0.33333] → 33333/100000

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Used in

Billiard balls - 5 steps

Topics

Continued Fractions And Rational Approximations - Objects with Notable Continued Fractions
Number Recognition - General
Number Theory - Number Representations

Related

N Chop Round ContinuedFraction Convergents RootApproximant LatticeReduce FindSequenceFunction SetPrecision FromDigits RealDigits FromContinuedFraction

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