# declare symbolic variables syms a b c x y = a*x^2 + b*x + c soln = solve(y == 0, x); # solve for specific values ysoln = subs(soln, [a,b,c],[3,2,-6]) ysoln = simplify(ysoln); # get decimal number with 9 digits vpa(ysoln, 9)
# declare symbolic variables syms a b c x y = a*x^2 + b*x + c soln = solve(y == 0, x); # solve for specific values ysoln = subs(soln, [a,b,c],[3,2,-6]) ysoln = simplify(ysoln); # get decimal number with 9 digits vpa(ysoln, 9)