How can I get outcome at a particular value after performing differentiation?

2 Ansichten (letzte 30 Tage)
Hello,
I would like to know how I can get outcome at a particular value after performing "differentiation" of a function using Matlab code. For example, after obtaining the first derivative of the particular function x^2-2*x+6, substituting x=3 into the derivative, then the outcome will be 4. See the simple program I've constructed, and please let me know how to fix the error.
syms x
f=x^2-2*x+6;
diff(f,x=2)

Akzeptierte Antwort

Walter Roberson
Walter Roberson am 16 Feb. 2019
subs(diff(f,x),x,2)

Weitere Antworten (1)

madhan ravi
madhan ravi am 16 Feb. 2019
Another option:
dx(x)=diff(f);
dx(3)

Kategorien

Mehr zu Symbolic Math Toolbox finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by