the derivative of a function with respect to one of its variables with all other variables held constant.
the derivative of a function of two or more variables with respect to one of the variables, the other or others being considered constant. Written ∂f/∂x
The derivative with respect to a single variable of a function of two or more variables, regarding other variables as constants.
noun, Mathematics. 1. an expression obtained from a given function of several variables by taking the partial derivative with respect to one of the variables and multiplying by the increment in that variable.
noun, Mathematics. 1. a differential equation containing partial derivatives.
noun, Mathematics. 1. the process of finding one of the partial derivatives of a function of several variables.
- Partial eclipse
noun 1. an eclipse, esp of the sun, in which the body is only partially hidden Compare total eclipse, annular eclipse partial eclipse An eclipse in which the part of the surface of a celestial object is obscured. See more at eclipse.