01
Press these keys
MATH→8:nDeriv(→ENTER
Step 1 of 3. Press MATH.
02
Walkthrough
- 1Open nDeriv
Press MATH → 8:nDeriv(. In MathPrint fill the expression, variable and evaluation value.
- 2Evaluate
Press ENTER and retain enough digits for interpretation.
- 3Check smoothness
nDeriv is numerical and can mislead at corners, cusps or discontinuities.
03
Worked example
Find d/dx(3x²) at x=−1.
NORMAL FLOAT AUTO REAL MP
nDeriv(3X²,X,−1)−6Answerf′(−1)=−6.