quadruple integral meaning in Hindi

Examples

1. :The average distance between two randomly chosen points in the unit square is given as a quadruple integral.
2. It may be easier to picture curved space-time or quadruple integrals ( as well as integrals over a 3-dimensional " supersurface " in 4-dimensional space, just like surface integrals over 2-dimensional surfaces in 3-dimensional space ).
3. I Googled and found mention of using quadruple integrals for " determining the interference between elements of a compound array of radiating elements " ( ), but besides some other obvious cases like four-dimensional Euclidean space, I couldn't really find real-life applications of a quadruple Riemann integral.