Find multiple solutions to one equation by changing value of variables

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Rachel 2013-12-5

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https://ww2.mathworks.cn/matlabcentral/answers/108759-find-multiple-solutions-to-one-equation-by-changing-value-of-variables

评论： Rachel 2014-2-10

I have an equation: x/u*v = 0.09293261.

I would like to find say 20 variations of x, u and v which will add up to this solution, within certain boundary constraints for x, u and v.

Managed to solve this using Excel Solver but it only returns one solution and I would like several. (Specifically my current solution is x = 0.019 , u = 280 and v = 7.30E-04.) I presume MatLab can do this but I'm struggling to understand how.

Please can you advise?

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Answer 1

David Sanchez 2013-12-5

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https://ww2.mathworks.cn/matlabcentral/answers/108759-find-multiple-solutions-to-one-equation-by-changing-value-of-variables#answer_117371

在 MATLAB Online 中打开

u = -10:0.1:10;   % values range from -10 to 10 in 0.1 steps. Set your boundaries
v = -10:0.1:10;   % values range from -10 to 10 in 0.1 steps. Set your boundaries
x = 0.09293261.*u./v;  % x depends on the values of u and v

You will end up with an array ( x ) of values for x that fulfil the condition imposed by your equation.