Ancient Mathematics a determinant whose elements are the first, partial derivatives of a finite number of functions of the same number of variables, with the elements in each row being the derivatives of the same function with respect to each of the variables
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
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Word origin of 'Jacobian'after Karl G. J. Jakobi (1804-51), Ger mathematician