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

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

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

public static Observable<java.lang.Integer> sumInt(ObservableSource<java.lang.Integer> source)

public static Observable<java.lang.Long> sumLong(ObservableSource<java.lang.Long> source)

public static Observable<java.lang.Float> sumFloat(ObservableSource<java.lang.Float> source)

public static Observable<java.lang.Double> sumDouble(ObservableSource<java.lang.Double> source)

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

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

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

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

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

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

Class MathObservable