MATLAB: How to find all the positive roots of (e^(-.2x ))(cos(2x))-.15x^2+1 exppositive rootsroots I only know how to do this with polynomials. Best Answer syms x,y=exp(-.2*x )*cos(2*x)-.15*x^2+1sol=solve(y) Related SolutionsMATLAB: Positive roots only for cubic eqn ROOTS = roots([1, -5, -2, 24]); Wanted = ROOTS(ROOTS > 0) MATLAB: How to find ALL of the positive roots of exp(-0.2*x)*cos(2*x)-0.15*x^2+1 It has exactly three.The easiest way is to plot the function, observe the approximate crossings, and run a numeric solver that is constrained to each range in turn. Related QuestionHow do i plot x^2 +4y^2 +9z^2 = 1Complex number root solving
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