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Namespaces |
| namespace | regina |
Functions |
| template<class R> |
| bool | isZero (R x) |
| | Determines whether the given real or complex number is zero.
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| template<class R> |
| bool | isNonZero (R x) |
| | Determines whether the given real or complex number is non-zero.
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| template<class R> |
| bool | isPositive (R x) |
| | Determines whether the given real or complex number is strictly positive.
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| template<class R> |
| bool | isNegative (R x) |
| | Determines whether the given real or complex number is strictly negative.
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| template<class R> |
| bool | isNonNegative (R x) |
| | Determines whether the given real or complex number is non-negative.
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| template<class R> |
| bool | isNonPositive (R x) |
| | Determines whether the given real or complex number is non-positive.
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Variables |
| const double | epsilon |
| | A very small positive real designed to accommodate for rounding error.
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