Finding approximate real solution to a equation

Can anyone please help me, how to find the approximate real solution to the following polynomial:
syms x
eqn=0.0941*x^3+0.1926*x-1500;
I used solve and simplify functions, but I don't get a real value.

 Risposta accettata

You don't need syms here. Try the roots function.
help roots

3 Commenti

@Alan Stevens Is there an arguement to get only real roots? I do not see in the help documentation.
You could try something like
coeffs = [0.0941, 0, 0.1926, -1500];
r = roots(coeffs);
indicator = find(r==real(r));
disp(r(indicator))
25.1400

Accedi per commentare.

Più risposte (0)

Categorie

Prodotti

Release

R2020b

Community Treasure Hunt

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

Start Hunting!

Translated by