for our example. Keystrokes below are in bold
How to evaluate an definite integral with the TI-83 or TI-84
Let's use the integral
for our example.
Keystrokes below are in bold
Method 1. (Shows no graph.)
Math, 9, Enter, Result
displayed is: fnInt(
Complete including three commas: fnInt(x^2-3x , x , 1 , 4 ), Enter: Answer
displayed is -1.5
Method2. (Shows a shaded graph.)
Y=, x^2-3x, Window, (Use 0,5,1,-10,10,1,1 for
this integral.)
2nd Calc, 7, 1, Enter, 4, Enter, results in:
-1.5