# How do I multiply a given function handle with the independent variable?

5 visualizzazioni (ultimi 30 giorni)
Saurabh Madankar il 3 Apr 2023
Risposto: Steven Lord il 3 Apr 2023
I have pre-defined n number of function handles f_{i} which are functions of t for i = 1 to n. How do I define a new function g_{i} = t.f_{i} and then evaluate the integral of each g_{i} from t=0 to 1?
##### 0 CommentiMostra -2 commenti meno recentiNascondi -2 commenti meno recenti

Accedi per commentare.

### Risposta accettata

Steven Lord il 3 Apr 2023
f = @sin;
g = @(t) t.*f(t);
format longg
[3*sin(3); g(3)] % Spot check by evaluating the function at t = 3
ans = 2×1
0.423360024179602 0.423360024179602
Now you can use g like any other function handle in functions like integral.
-6.28318530717959
syms x
symbolicAnswer = int(x.*sin(x), 0, 2*pi) % or
ans = 2×1
-6.28318530717959 -6.28318530717959
##### 0 CommentiMostra -2 commenti meno recentiNascondi -2 commenti meno recenti

Accedi per commentare.

### Più risposte (1)

Use symfun and int in Symbolic Math Toolbox if you want to do integrals.
##### 0 CommentiMostra -2 commenti meno recentiNascondi -2 commenti meno recenti

Accedi per commentare.

### Categorie

Scopri di più su Formula Manipulation and Simplification in Help Center e File Exchange

### Community Treasure Hunt

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

Start Hunting!

Translated by