| http://www.w3.org/ns/prov#value | - Enough not to cite a simple perl parlor trick as evidence of my education.In other words, you do not know a damned thing about math.Proof?When we work with derivatives we can say if y is a function of u and u is a function of x, then we can differentiate y with respect to x in the following way: We find the derivative of y with respect to u and we multiply that with the derivative of u with respec
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