Riemann sum area estimator — a TI-84 Plus CE program

By E-Code · updated 2026-09-26

RIEMANN is a TI-BASIC program for the TI-84 Plus CE. Approximates the area under x² from 0 to a bound using 1000 rectangles.

How it's checked

It is run on the TI-BASIC interpreter by E-Code's automated library checks, which also check a computed answer where one is easy to state. It has no oracle case file, so this page gives no case count.

How E-Code checks every program

Run it or put it on your calculator

• Open the library in the TI-84 Plus CE calculator and pick “Riemann sum area estimator” (RIEMANN).
• Put it on your own calculator with a computer and a USB cable, or type it in by hand.

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All TI-84 Plus CE math programs · All TI-84 Plus CE programs