How to solve this nonlinear system of equations?

07022014, 05:54 PM
Post: #5




RE: How to solve this nonlinear system of equations?
Quote:Use Advanced Graphing to fint initial solution.I didn't know how to use that App. I always plot functions inside the Solve app, but it didn't let me plot several equations at the same time, lol. Thanks. (07022014 05:15 PM)parisse Wrote: You can not use conditions for multivariate systems with approx coefficients, you can only give an initial guess, and if it is not far from a solution, fsolve will return a solution up to machine precision. Your solution does not seem to work by the way: So if coeficients were integer numbers I'd be able to use conditions for multivariable systems? Interesting. I just typed in fsolve([eq1,eq2],[x,y],[11.3,302.5]) and it returned [11.316938475 302.475831894] which was the answer I was looking for ,but if I first have to plot the system, then it could be faster if I just Tracefound intersections on Advanced Graphing. Anyway, thanks guys you helped me a lot. 

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Messages In This Thread 
How to solve this nonlinear system of equations?  alexzkter  07022014, 01:44 PM
RE: How to solve this nonlinear system of equations?  slawek39  07022014, 03:59 PM
RE: How to solve this nonlinear system of equations?  parisse  07022014, 05:15 PM
RE: How to solve this nonlinear system of equations?  alexzkter  07022014 05:54 PM
RE: How to solve this nonlinear system of equations?  slawek39  07022014, 05:42 PM
RE: How to solve this nonlinear system of equations?  alexzkter  07022014, 05:58 PM
RE: How to solve this nonlinear system of equations?  parisse  07022014, 06:54 PM

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