Riemann Sum for a Definite Integral

Dick Lane
The region between x-axis and graph of function f on interval [a,b] has (net) area which can be approximated by Riemann Sums computing total area for a collection of adjacent rectangles with one side on axis and opposite side with a corner on the graph.
  • Function f can be revised by typing a new expression in upper-right box.
  • Ends of interval [a,b] can be changed by dragging points on x-axis or entering new values in labeled boxes. Note that the corresponding part of the graph is thickened.
  • Choose number of rectangles with slider for n.
  • Use the checkboxes to choose what to display.