Partial derivative - Wikipedia
https://en.wikipedia.org/wiki/Partial_derivativeIn mathematics, a partial derivative of a function of several variables is its derivative with respect to one of those variables, with the others held constant (as opposed to the total derivative, in which all variables are allowed to vary). Partial derivatives are used in vector calculus and differential geometry. The partial derivative of a function with respect to the variable is variously denoted by
Calculus III - Partial Derivatives
tutorial.math.lamar.edu › PartialDerivativesMay 31, 2018 · In this case we call h′(b) h ′ ( b) the partial derivative of f (x,y) f ( x, y) with respect to y y at (a,b) ( a, b) and we denote it as follows, f y(a,b) = 6a2b2 f y ( a, b) = 6 a 2 b 2. Note that these two partial derivatives are sometimes called the first order partial derivatives. Just as with functions of one variable we can have ...
World Web Math: Vector Calculus: Partial Differentiation
web.mit.edu › wwmath › vectorcNov 05, 2021 · Partial Derivatives are the beginning of an answer to that question. A partial derivative is the rate of change of a multi-variable function when we allow only one of the variables to change. Specifically, we differentiate with respect to only one variable, regarding all others as constants (now we see the relation to partial functions!).