integration using two variables
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have two expressions for variables a and x
M = (-150 + 20.556*x - ((1/2)*(x-10)^2 - (1/60)*(x-10)^3))*heaviside(20-x) + (5.556*x+(250/3))*heaviside(x-20);
m = (a*(1-x/30))*heaviside(20-a) + (x*(1-a/30)*heaviside(20-x) + a*(1-x/30)*heaviside(x-20))*heaviside(a-20);
And another expression
Mm = M*m;
I want to integrate Mm with respect to x treating a as a constant from x = 0 to x = 30. How can i do it?
0 Kommentare
Antworten (1)
Walter Roberson
am 25 Okt. 2019
Use the symbolic toolbox
syms x a
M = (-150 + 20.556*x - ((1/2)*(x-10)^2 - (1/60)*(x-10)^3))*heaviside(20-x) + (5.556*x+(250/3))*heaviside(x-20);
m = (a*(1-x/30))*heaviside(20-a) + (x*(1-a/30)*heaviside(20-x) + a*(1-x/30)*heaviside(x-20))*heaviside(a-20);
Mm = M*m;
result = simplify( int(expand(Mm), x, 0, 30) );
0 Kommentare
Siehe auch
Kategorien
Mehr zu Formula Manipulation and Simplification 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!