trapezoidal rule

== English == === Noun === trapezoidal rule (plural trapezoidal rules) (American spelling) (mathematics) A method of finding an approximate value for a definite integral, based on dividing the area under the graph of the function into a series of strips, each of which is approximately a trapezoid, and summing the area of all the trapezoids to approximate the area. ==== Synonyms ==== (British) trapezium rule trapezoid rule ==== Translations ==== ==== See also ====