how do you find the integral on a ti 83 calculator?

Try:

http://www.tc3.edu/instruct/sbrown/ti83/integr.htm

To find the integral of a function on a TI-83 calculator, you can use the built-in integration feature called "fnInt". Here are the steps to follow:

1. Press the "MODE" button on your TI-83 calculator and ensure that the calculator is in "FUNCTION" mode.

2. Enter the function you want to integrate. For example, if you want to find the integral of f(x) = 2x + 3, you would enter "2x+3" as a function.

3. Press the "ALPHA" button followed by the "TRACE" button. This will bring up the "CALC" menu.

4. Use the arrow keys to navigate to "fnInt" and press the "ENTER" button.

5. You will be prompted to enter the lower and upper limits of integration. For example, if you want to find the integral of f(x) from x = 1 to x = 5, you would enter "1,5".

6. Press the "ENTER" button, and the calculator will display the value of the definite integral.

It is important to note that the TI-83 calculator uses numerical methods to approximate the integral rather than performing symbolic integration. Therefore, it may not produce exact results for certain functions or complex integrals.