In technical analysis, CrossAny and CrossOver math functions are usually provided but the distinction between these 2 functions are not always explicitly specified in the documentations.
For the CrossAny function, it returns true when either point A or B crosses each other from
t. Whereas, for the CrossOver function, it returns true only when point A crosses over point B.
Here is an example.
Date | A | B | CrossAny | CrossOver | 2019-04-01 | 3 | 4 | n/a | n/a | 2019-04-02 | 8 | 5 | True | True | 2019-04-03 | 6 | 7 | True | False |