Texas Instruments TI-84 Plus Silver Edition Manual page 52

Finding a Numeric Derivative at x = A Finding a Numeric Derivative
Finding a Numeric Derivative Finding a Numeric Derivative
First, enter the function in Y= as Y1 . Then return to the main screen. Press MATH, 8, VARS,
Y-VARS, FUNCTION, Y1, (comma), X, A. Close parentheses and press ENTER .
Example: Find f '(2)
Enter function
VARS
,
ENTER
Note: If the function is stored in a different line than Y1, cursor down to the appropriate
function line and press ENTER .
= − +
2
if f x ( ) 3 x 7 x 4
MATH
Y-VARS
Enter , X,2)
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at x = A
at x = A at x = A
8
FUNCTION
ENTER