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Can I put restrictions on possible values for variables?

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Daniel
Daniel 2014-9-9
回答： Star Strider 2014-9-9
Say I have a system of equations or an equation I want to solve, but only under certain conditions for my variables (eg: x is not 0 or x<20)
How could I create a variable with certain restrictions on it's possible values? (or would I specify that when using a specific function for solving the equation(s)?
Side note: I'm not quite sure how I will solve the equation(s) but I may use one of the following: http://www.mathworks.com/help/symbolic/solve-a-system-of-algebraic-equations.html http://www.mathworks.com/help/symbolic/mupad_ref/linsolve.html http://www.mathworks.com/help/symbolic/solve.html

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Star Strider
Star Strider 2014-9-9
I’m not certain what you are doing, but the Symbolic Math Toolbox assume function (and its friends listed at the end of the page) may be helpful.

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