Is it possible to create a function to shorten a variable?

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Gabriel S 2020-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/509043-is-it-possible-to-create-a-function-to-shorten-a-variable

编辑： Cam Salzberger 2020-3-4

Hello.

I would like to know it is possible to create a function ("b" in the example below) in order to shorten the expression of another variable. For example:

a = 2;

b = 0.5*c + 1;

c = b + a;

Solving the system of equations above manually, a value of c = 6 and b = 4 is achieved. That being said, is there a command that lets me reproduce this manual calculation, or do I have to obligatorily replace "c = b + a" with "c = 2*(a+1)" in order to solve this system? Thanks in advance!

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Cam Salzberger 2020-3-4

编辑：Cam Salzberger 2020-3-4

Are you trying to solve this system of equations symbolically or numerically? If symbolically, do you have the Symbolic Math Toolbox (check ver output).

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