In complex analysis, a branch of mathematics, a **generalized continued fraction** is a generalization of regular continued fractions in canonical form, in which the partial numerators and partial denominators can assume arbitrary real or complex values.

A generalized continued fraction is an expression of the form

where the *a*_{n} (*n* > 0) are the partial numerators, the *b*_{n} are the partial denominators, and the leading term *b*_{0} is called the *integer* part of the continued fraction.

The successive convergents of the continued fraction are formed by applying the fundamental recurrence formulas:

and in general

where *A*_{n} is the **numerator** and *B*_{n} is the **denominator**, called **continuants**, of the *n*th convergent.

If the sequence of convergents {*x*_{n}} approaches a limit the continued fraction is convergent and has a definite value. If the sequence of convergents never approaches a limit the continued fraction is divergent. It may diverge by oscillation (for example, the odd and even convergents may approach two different limits), or it may produce an infinite number of zero denominators *B*_{n}.

Read more about Generalized Continued Fraction: History of Continued Fractions, Notation, Some Elementary Considerations, Linear Fractional Transformations, Continued Fractions and Series, Higher Dimensions

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