change of independent variables in symbolic functions

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Can on 5 Jun 2016

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Answered: Star Strider on 6 Jun 2016

the title may not be very explanatory, so; i have experimental data of L vs a, and also another data of D vs L, i've already fitted curves for each of them, so i have two polynomial symbolic functions which are L=L(a) and D=D(L). now i want to have the symbolic expression of D as a function of a D=D(a) how can i do that? thanks in advance.

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Star Strider on 6 Jun 2016

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https://in.mathworks.com/matlabcentral/answers/287862-change-of-independent-variables-in-symbolic-functions#answer_224564

See if the Symbolic Math Toolbox compose function will do what you want.

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