Numerical, Integration

https://ru.wikipedia.org/wiki/%D0%A7%D0%B8%D1%81%D0%BB%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5_%D0%B8%D0%BD%D1%82%D0%B5%D0%B3%D1%80%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5

https://en.wikipedia.org/wiki/Numerical_integration

https://math.libretexts.org/Courses/Mount_Royal_University/MATH_2200%3A_Calculus_for_Scientists_II/2%3A_Techniques_of_Integration/2.5%3A_Numerical_Integration_-_Midpoint%2C_Trapezoid%2C_Simpson's_rule

https://www.whitman.edu/mathematics/calculus_online/section08.06.html

https://opentextbc.ca/calculusv2openstax/chapter/numerical-integration/

https://mathworld.wolfram.com/NumericalIntegration.html

https://www.sfu.ca/math-coursenotes/Math%20158%20Course%20Notes/sec_Numerical_Integration.html

https://www.sciencedirect.com/topics/mathematics/numerical-integration

https://www.gnu.org/software/gsl/doc/html/integration.html

https://www.mathworks.com/help/matlab/ref/integral.html

https://en.wikipedia.org/wiki/Trapezoidal_rule

https://math24.net/trapezoidal-rule.html

https://www.khanacademy.org/math/ap-calculus-ab/ab-integration-new/ab-6-2/a/understanding-the-trapezoid-rule