
Re: Finding roots of cubic symbolic polynomials
Posted:
Aug 13, 2014 9:38 AM


"Sanaa " <findingsanaa@yahoo.com> wrote in message news:lsfopu$kg6$1@newscl01ah.mathworks.com... > "Nasser M. Abbasi" wrote in message <lsflaa$k11$1@speranza.aioe.org>... >> On 8/13/2014 7:08 AM, Sanaa wrote: >> > Hi, >> > I need to calculate the roots of a cubic symbolic polynomials. It >> > contains 7 parameters. >> > Any help is appreciated. >> > Thank you >> > >> >> help solve > I have tried this, but it asks about segma? > function sols = solve_cubic( segma, beta, mu, nu, delta, gamma) > syms lambda sols = > solve(lambda^3+lambda^2*(nu*mu+delta*mu+gamma*mu+segma*beta*mu+mu^2)+lambda*(delta*mu^2+gamma*mu^2+nu*gamma*mu+segma*gamma*musegma*mu*beta)) > end
Show the group EXACTLY how you called solve_cubic and the FULL text of any error or warning messages you received. The group should be able to call solve_cubic using ONLY your instructions on how to call it.
 Steve Lord slord@mathworks.com To contact Technical Support use the Contact Us link on http://www.mathworks.com

