Midpoint Rule
( \newcommand{\kernel}{\mathrm{null}\,}\)
Visualize the Midpoint Rule
Move the slider to see the midpoint rule being used to approximate ∫41xcos(4x)dx=−0.1177... using the selected number of rectangles.
Area ≈ 0.7308 + -0.9595 + 1.0421 + -0.9650 = -0.1516