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How to get coefficients of equation defined by symbolic variable equation.?

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HEmant kuralkar 2017-6-9

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回答： Walter Roberson 2017-6-9

采纳的回答： Walter Roberson

I have number of symbolic variable defined by as follow:

% a1, a2, a3, a4, a5

a = sym('a',[1 5]);

Now I have an equation.. eqn = 3*a1 - 6*a3 + 9*a5 == 45;

I want to separate all the coefficients of above equation and store in 1*5 matrix.

I also want to store constant (=45) into another vector.

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Walter Roberson 2017-6-9

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https://ww2.mathworks.cn/matlabcentral/answers/343991-how-to-get-coefficients-of-equation-defined-by-symbolic-variable-equation#answer_270102

在 MATLAB Online 中打开

[A,B] = equationsToMatrix(eqn,a)

A will be the coefficients and B will be what it equals

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