Pointwise product
Product of the images of two functions at every value in the domain / From Wikipedia, the free encyclopedia
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For entrywise product, see Hadamard product (matrices).
In mathematics, the pointwise product of two functions is another function, obtained by multiplying the images of the two functions at each value in the domain. If f and g are both functions with domain X and codomain Y, and elements of Y can be multiplied (for instance, Y could be some set of numbers), then the pointwise product of f and g is another function from X to Y which maps x in X to f (x)g(x) in Y.