Peachpie.Rationals (nuget): Implementation of rational number arithmetic for .NET with arbitrary precision.  Supported features:  - implicit conversions - rationals integrate seamlessly with other number types - unlimited precision - rationals use BigInteger inside - canonical form - each rational can have its canonical form (irreducible fraction where denominator is always positive) - separate whole and fractional part - any rational number can be separated into a whole part (integer quotient aka result of integer division) and fractional part (reminder of the integral division aka result of modulo operation) - comparison &amp; equality - multiple formatting options - ToString("C") (canonical form), ToString("W") (whole + fractional part), or normal fraction format - continued fraction expansion - expand rational numbers to continued fraction (sequence of coefficients), construct rational numbers from sequence of continued fraction coefficients - rational number approximation - approximate floating point numbers (decimal, double, float) as rational numbers with customizable tolerance  Example usage:  Rational left = (Rational) 1 / 2;  Rational right = (Rational) 1 / 4;  Rational sum = left + right; // equals to: 3 / 4
Keywords: arbitrary-precision|biginteger|bigrational|c-sharp|coefficients|continued-fractions|fraction|fractional|rational-numbers|rational-number-arithmetic|rationals