![]() Wolfram Knowledgebase Curated computable knowledge powering Wolfram|Alpha. It lets you solve an equation for some constant or for some variable within the. Wolfram Universal Deployment System Instant deployment across cloud, desktop, mobile, and more. Solve is a very useful function when dealing with various equations. (1/a)- (be-2a)/a - (e-2aV0)/a I want to find a general expression for V0 where a and b are constants. Hopefully something in this will provide you the clues that you need.Wolfram Data Framework Semantic framework for real-world data. I have 2 equations that I want to equate to each other and solve for a certain variable in one of the equations. If you are aware of a good starting location for the search then this might be very helpful. The NSolve function in Mathematica is used to find numerical approximations to the solutions of linear and polynomial functions and inequalities. Please do me one more favour, that in In:= v = Total[īased on this and other experiments which I did, but did not include in the post, I suspect that it is possible there is either no zero to the six equation system or that there are local minima which are trapping NMimize and preventing it from finding a good zero.Ī number of different experiments have not been able to find anything other than that minima. Thanks for the detailed answer and for your time. I suspect this may be unacceptable for new and different reasons. I do not know if this would be a good idea for the kinds of problems that you are working on. I am solving the above set of three equations using Solve in Wolfram Mathematica but I get the error message as Solve::nsmet: This system cannot be solved with the methods available to Solve. Hopefully that would be fast and correct for the kinds of systems that you will give it. I suggest the following: 1) As you receive help, try to give it too, by answering questions in your area of expertise. Then your function would use that result to either print out that there are no solutions or it would give your system and variables to NSolve and return the result from that. You would craft your function to use NMinimize on a modified version of your system that it creates that is similar to what I have shown several times and with a suitably large number of iterations so that it would likely find one solution if any exists. Perhaps you could try writing your own function which would accept a system of equations and a list of variables. ![]() Unfortunately I do not know of an available Mathematica function which accept an arbitrary system of equations and will always rapidly and correctly either give you all solutions or tell you that there is no solution. Finance, Statistics & Business Analysis.x->2 Out: 4 By doing this you performed the operation without permanently assigning 2 to x. A substitution rule is written like this: Expression /. constantly redefine variables to substitute into expressions. Wolfram Knowledgebase Curated computable knowledge powering Wolfram|Alpha. The substitution rule is a very powerful tool in Mathematica. Wolfram Universal Deployment System Instant deployment across cloud, desktop, mobile, and more. Its a good idea to begin user symbols with lower case, so they dont override Mathematica definitions. ![]() ![]() You can use the Rule by a Replace, for which the shortcut is /. Wolfram Data Framework Semantic framework for real-world data. Solve is giving you a Rule for T, which is much more polite than setting the variable T to some value. ![]()
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