square_minimal_rule, a Fortran90 code which returns "almost minimal" quadrature rules, with exactness up to total degree 55, over the interior of the symmetric unit square in 2D, by Mattia Festa and Alvise Sommariva.
The information on this web page is distributed under the MIT license.
square_minimal_rule is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and a Python version.
f90_rule, a Fortran90 code which computes a quadrature rule which estimates the integral of a function f(x), which might be defined over a one dimensional region (a line) or more complex shapes such as a circle, a triangle, a quadrilateral, a polygon, or a higher dimensional region, and which might include an associated weight function w(x).