\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - Algebraic Foundations

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RealEmbeddableTraits_::ToDouble Concept Reference
Concepts

## Definition

`AdaptableUnaryFunction` computes a double approximation of a real embeddable number.

Remark: In order to control the quality of approximation one has to resort to methods that are specific to NT. There are no general guarantees whatsoever.

Refines:
  `AdaptableUnaryFunction`

See Also
  `RealEmbeddableTraits`

## Types
typedef double | result_type
| The result type.
typedef unspecified_type | argument_type
| Is `RealEmbeddableTraits::Type`.

## Operations
result_type | operator() (argument_type x)
| computes a double approximation of a real embeddable number.