performance tuning - Adaptive sampling for slow to compute functions in 2D - Mathematica Stack Exchange
Mathematica-Based Computer Laboratories for the Enhancement Of a Calculus Sequence Mike O'Leary and Raouf Boules Mathematics Department Towson University. - ppt download
Efficient adaptive integration of functions with sharp gradients and cusps in n-dimensional parallelepipeds
numerical integration - Differential quadrature method fails on 4th order PDE with nonlinear b.c. as grid gets denser - Mathematica Stack Exchange
Gaussian Quadrature -- from Wolfram MathWorld
New rigorous numerical integration in Arb
NIntegrate Integration Strategies—Wolfram Language Documentation
PDF) USING MATHEMATICA IN TEACHING ROMBERG INTEGRATION | Yilmaz Akyildiz and Ali Yazici - Academia.edu
Numerical integration - Wikipedia
Solved 5. (Quadrature rules) Approximate the following | Chegg.com