# How are the location of Gausian points determined in Finite element theory?

From the finite element theory, what is remained a bit unclear for me, is that how do we know the location of gausian points where the integration is done for each specific type of element ? it is not indicated in many FEM books, but if someone could explain it here , it would be fantastic

• See en.wikipedia.org/wiki/…. The Gauss points are called Gauss nodes in the article. They are the $i$-th roots of the associated Legendre polynomials in [-1,1]. Isoparametric assumptions are used to convert fom [-1,1] to arbitrary coordinate ranges. – Biswajit Banerjee Sep 7 '19 at 22:04