Histogram operations

I’m learning histogram operations currently, though for histograms to be used/plotted after the program has run, you create them as pointers. Though I think you can not perform operations on pointers for histograms. h1 and h2 here are gaussian and exponential random generated histograms (pointers).

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ROOT Primer -> Histograms -> Add and Divide Histograms

ROOT User’s Guide -> Histograms -> Adding, Dividing, and Multiplying