单词	Bessel function
释义	Bessel function noun Bes·​sel function ˈbe-səl-  : one of a class of transcendental functions expressible as infinite series and occurring in the solution of the differential equation {latex}x^{2}\\frac{d^{2}y}{dx^{2}} + x\\frac{dy}{dx} = (n^2 - x^2)y{/latex} Word History Etymology Friedrich W. Bessel †1846 Prussian astronomer First Known Use 1862, in the meaning defined above
随便看	data structure databanks database databased databases databasing datable databler datablest databuses datafile datafiles dataflow datagloves datal datamations datana datarias dataries datary datasets datch datcha datchas date

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