This app is to help visualize the different types of Riemann sums that are used to estimate the value of a definite integral.[br][br]You can find the definite integral of a single function f(x) from a to b, or the definite integral of f(x)-g(x) from a to be by checking "between functions" or "single function"[br][br]The partition can be a random partition or a partition where each subinterval is of equal length.[br][br]Check "single subinterval" to see the index subinterval area. [br]Check "subinterval 1 to index" to see the first index areas.