Symbolic solution to a system of equations
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Aleem Andrew
il 1 Apr 2020
Commentato: Altug Bilge
il 21 Nov 2020
Can Matlab solve a system of equations like a+b=c, b=2c symbolically for b and c? The output should be c=-a, b=-2a
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Ameer Hamza
il 1 Apr 2020
Modificato: Ameer Hamza
il 1 Apr 2020
In MATLAB you solve it like this using symbolic variables and solve function()
syms a b c
eq1 = a+b==c;
eq2 = b==2*c;
sol = solve([eq1 eq2])
Result:
>> sol.b
ans =
-2*a
>> sol.c
ans =
-a
5 Commenti
Ameer Hamza
il 11 Nov 2020
You can use subs() function
b_val = subs(sol.b, a, 5); % substitute a=5
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