Function to Linear equation with string input

Hello.

I would like to make a function which can give the result of a linear equation system with 2 equations and 2 unknown. The function should receive 2 parametres for which every parameter is a string which contain a equation.

Like: y=2x+1 y=3x-2

The function should be like: Functionname('y=2x+1'.'y=3x-2') and should give result like a string with the result like 'x=3, y=7'

Both equation should be like the form of y=ax+b or y=ax-b

Anyone who can me?

[John D'Errico]

You would need to write a function that would parse the strings and modify them, because your strings are not even valid syntax in MATLAB. 2x is NOT the same as 2*x. In fact, 2x is nothing you can use.

Once you have modified the code to be usable by the symbolic toolbox, then you would call solve to do the work.

Start writing. As your "question" is now, it is not even a question, but a statement of your goals. You achieve your goals by learning MATLAB. and by writing code.

[dpb]

Alternatively, you could modify your goals a little and given that you have a fixed format for the equations simply enter the numeric coefficients of the terms and build the resulting system knowing the form. Somewhat easier first task; get that working then can expand on the knowledge gained there in Matlab to enhance the user interface...

[Star Strider]

Symbolic Math Toolbox

Answer 1

[Walter Roberson]

http://uk.mathworks.com/matlabcentral/answers/235349-solving-linear-equations-with-2-unknown

In particular I draw your attention to http://uk.mathworks.com/matlabcentral/answers/235349#answer_190088