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# round

Basis Function Combinator

Round a number to a given precision in decimal digits.

The return value is an integer if ndigits is omitted or None. Otherwise
the return value has the same type as the number. ndigits may be
negative.

Gentzen diagram.

## Definition

if not basis.

## Derivation

if not basis.

## Source

if basis

## Discussion

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## Crosslinks

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