Numerical computation and properties of the two dimensional exponential integrals

In this paper, we investigate problem of convergence of the two dimensional exponential integral insert ignore into journalissuearticles values(TDEI); functions arising in the study of the radiative transfer in a multi-dimensional medium. In our study, generalized exponential integral function’s insert ignore into journalissuearticles values( GEIF ); are expressed with double improper integrals as given in the original expression. Then we study the properties and asymptotic behaviour of the TDEI functions. We also give numerical computations of the values of TDEI functions.