Why function sym and syms dont work in R2012b?

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Nikola
Nikola 2015-2-23
回答： Nikola 2015-2-25
syms x y
Undefined function 'syms' for input arguments of type 'char'.
help syms
syms not found.

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采纳的回答

Mischa Kim
Mischa Kim 2015-2-23
编辑：Mischa Kim 2015-2-23
Nikola, you probably don't have the Symbolic Math Toolbox installed/licensed. To check use
ver
to list all installed toolboxes. In addition, try
license('test','symbolic_toolbox')
to see if a license exists for the toolbox. The command returns a 1 if it exists, a 0 if it does not.

更多回答（2 个）

Nikola
Nikola 2015-2-23
Symbolic mathlab toolbox isnt on "ver" list, but when i write license('test','symbolic_toolbox') matlab giver ans = 1... This mean that I have licence for symbolic toolbox but it isnt installed? Wher can I find installation? I tryed to google it but mathworks.com cant open dl page...
Nikola
Nikola 2015-2-25
I installed new mathlab with all toolboxes, cause i couldn't find symbolic math toolbox... It took 2 hours... Do you know where can I find specific toolbox when needed? Best regards

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