How do I display numeric values in a struct?
Afficher commentaires plus anciens
I'm trying to solve a system of equations.
syms m F1 F2 l a1 a2
%Equations
eqn1 = F1 + F2 -9.81*m == 0;
eqn2 = a1 + a2 - l == 0;
eqn3 = F2*a2 - F1*a1 == 0;
The values for some of these variables are given, but three are to be solved by the program. The following code solves it, but I can't get it to display the numerical values of sol:
m = 1576;
F1 = 4562.3;
l = 2.65;
sol = solve([eqn1, eqn2, eqn3], [F2, a1, a2])
disp('Problem1 1: Values of F2, a1, a2');
disp(structfun(@double, sol));
No semicolon for line 4 here - sol displays in the command window as a 1x1 struct with 3 fields:
sol =
F2: [1x1 sym]
a1: [1x1 sym]
a2: [1x1 sym]
How do I "convert" the fields of sol to numerical solutions I can display?
1 commentaire
RAVI SINGH
le 2 Août 2021
I too am seeking the solution for similar issue.
Réponse acceptée
Plus de réponses (1)
format long g
syms m F1 F2 l a1 a2
%Equations
eqn1 = F1 + F2 -9.81*m == 0;
eqn2 = a1 + a2 - l == 0;
eqn3 = F2*a2 - F1*a1 == 0;
m = 1576;
F1 = 4562.3;
l = 2.65;
sol = solve(subs([eqn1, eqn2, eqn3]), [F2, a1, a2])
disp(structfun(@double, sol, 'uniform', 0));
Catégories
En savoir plus sur Symbolic Math Toolbox dans Centre d'aide et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!