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# Quadrature.Integrator

Constants that define different integrators.

```
enum Integrator
```

## Topics

### Integrators

[`Quadrature.Integrator.qng`](/documentation/Accelerate/Quadrature/Integrator/qng)

Non-adaptive automatic integrator that uses Gauss-Kronrod-Patterson quadrature coefficients.

[`nonAdaptive`](/documentation/Accelerate/Quadrature/Integrator/nonAdaptive)

Non-adaptive automatic integrator that uses Gauss-Kronrod-Patterson quadrature coefficients.

[`Quadrature.Integrator.qag(pointsPerInterval:maxIntervals:)`](/documentation/Accelerate/Quadrature/Integrator/qag(pointsPerInterval:maxIntervals:))

Globally adaptive integrator.

[`adaptive(pointsPerInterval:maxIntervals:)`](/documentation/Accelerate/Quadrature/Integrator/adaptive(pointsPerInterval:maxIntervals:))

Globally adaptive integrator.

[`Quadrature.Integrator.qags(maxIntervals:)`](/documentation/Accelerate/Quadrature/Integrator/qags(maxIntervals:))

Globally adaptive integrator that is based on 21-point or 15-point Gauss–Kronrod quadrature within each subinterval.

[`adaptiveWithSingularities(maxIntervals:)`](/documentation/Accelerate/Quadrature/Integrator/adaptiveWithSingularities(maxIntervals:))

Globally adaptive integrator that is based on 21-point or 15-point Gauss–Kronrod quadrature within each subinterval.


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