Geometric shapes with four sides, where two opposite sides are parallel. In calculus, they are used as an alternative to rectangles in approximating the area under a curve when calculating certain types of integrals.
An approximation method for definite integrals that uses trapezoids instead of rectangles.
Composite Trapezoidal Rule: An extension of the trapezoidal rule that applies it to multiple subintervals instead of just one.
Error Estimation for Trapezoidal Rule: Techniques used to determine how accurate an approximation obtained using trapezoids is compared to the actual value.