Formula:644

Digital Library of Mathematical Functions ID 1.17.E15

${\displaystyle{\displaystyle\delta\left(x-a\right)=\int_{0}^{\infty}s\left(x,\ell;r\right)s\left(a,\ell;r\right)\mathrm{d}r,}}$

Constraint(s)

${\displaystyle{\displaystyle x>0}}$

Symbols List

• ${\displaystyle{\displaystyle s\left(\NVar{\epsilon},\NVar{\ell};\NVar{r}\right)}}$: regular Coulomb function
• ${\displaystyle{\displaystyle\delta\left(\NVar{x-a}\right)}}$:
• ${\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}$: differential of x
• ${\displaystyle{\displaystyle\int}}$: integral
 

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