English Exponential integral Cited by user Cosmia Nebula on 04 May 2023 In mathematics, the exponential integral Ei is a special function on the complex plane.
English Asymptotic expansion Cited by user Cosmia Nebula on 04 May 2023 In mathematics, an asymptotic expansion, asymptotic series or Poincaré expansion (after Henri Poincaré) is a formal series of functions which has the property that…
English Method of matched asymptotic expansions Cited by user Cosmia Nebula on 04 May 2023 In mathematics, the method of matched asymptotic expansions is a common approach to finding an accurate approximation to the solution to an equation, or system of…