An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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partial derivative
  واخنه‌ی ِ پاری  
vâxane-ye pâri
Fr.: dérivée partielle  

The derivative of a function of two or more variables, e.g., z = f(x,y), with respect to one of the variables, the others being considered constants (denoted ∂z / ∂x).

See also: → partial; → derivative.