MathObservable (rxjava3-extensions 3.1.1 API)

```
public final class MathObservable
extends Object
```
Utility methods to work with numerical Observable sources: sum, min, max and average.

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static Observable<Double>`	`averageDouble(ObservableSource<? extends Number> source)`
`static Observable<Float>`	`averageFloat(ObservableSource<? extends Number> source)`
`static <T extends Comparable<? super T>> Observable<T>`	`max(ObservableSource<T> source)`
`static <T> Observable<T>`	`max(ObservableSource<T> source, Comparator<? super T> comparator)`
`static <T extends Comparable<? super T>> Observable<T>`	`min(ObservableSource<T> source)`
`static <T> Observable<T>`	`min(ObservableSource<T> source, Comparator<? super T> comparator)`
`static Observable<Double>`	`sumDouble(ObservableSource<Double> source)`
`static Observable<Float>`	`sumFloat(ObservableSource<Float> source)`
`static Observable<Integer>`	`sumInt(ObservableSource<Integer> source)`
`static Observable<Long>`	`sumLong(ObservableSource<Long> source)`

public static Observable<Integer> sumInt(ObservableSource<Integer> source)

public static Observable<Long> sumLong(ObservableSource<Long> source)

public static Observable<Float> sumFloat(ObservableSource<Float> source)

public static Observable<Double> sumDouble(ObservableSource<Double> source)

public static <T extends Comparable<? super T>> Observable<T> max(ObservableSource<T> source)

public static <T> Observable<T> max(ObservableSource<T> source,
                                    Comparator<? super T> comparator)

public static <T extends Comparable<? super T>> Observable<T> min(ObservableSource<T> source)

public static <T> Observable<T> min(ObservableSource<T> source,
                                    Comparator<? super T> comparator)

public static Observable<Float> averageFloat(ObservableSource<? extends Number> source)

public static Observable<Double> averageDouble(ObservableSource<? extends Number> source)

Class MathObservable