# Bessel function

noun
Bes·​sel function | \ ˈbe-səl- \

## Definition of Bessel function

: 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}

## First Known Use of Bessel function

1862, in the meaning defined above

## History and Etymology for Bessel function

Friedrich W. Bessel †1846 Prussian astronomer

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Time Traveler for Bessel function

## The first known use of Bessel function was in 1862

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Bessemer copper

## Statistics for Bessel function

Cite this Entry

“Bessel function.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Bessel%20function. Accessed 9 Aug. 2020.

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