Method 1: Using d() function on Home screen 
Steps 
Key Sequence 
Screens 
1. Set Up Differentiator 
Press F3, then ALPHA key, then = key (for nDeriv() 

2. Type the Function 


3. Input Variable 
Press comma, then the variable 

4. Input Value for h 
Press comma, then 0.01 (or smaller) 

NOTE: The default value for h is 0.001 
4. Execute Derivative 
Press ')', then ENTER 


Method 2: Using graph of function 
Steps 
Key Sequence 
Screens 
1. Input Function, PiecewiseDefined Function, or Parametric Equation. 
Press DIAMOND key, then F1 key (for Y=) 


Type the function 

2. Graph 
Press DIAMOND key, then F3 key 

3. Find Derivative 
Press F5 


Press 6 (for Derivatives) 


Select appropriate derivative 


Type in value for x or trace function until you reach the value for x. 

Note: For a parametric equation: type in value for t or trace curve until you reach the value for t. 
Note: In this case, we are finding the derivative of the function at x = 1. 

Press ENTER 

Note: In this case, the derivative of the function at x = 1 is
dy/dx = –1. 