Multiply histograms


I want to multiply two histograms:
TH1F *h1=…
TH1F *h2=…
TH1F *h3;
the following operation did not work: h3=( *h1 )( *h2 )
What is wrong here?

what is the result you expect from the multiplication of two histograms?

a third histogram.
h2 contains factors. h3 should be the same as h1 but corrected with the factors in h2 (bin by bin)

actually I doubted if this works at all, but this was suggested in the guide:
( )
so let me ask in a different way, Is there a function to achieve this operation?

solved with: h3->Multiply(h1,h2)