about ztrans command?

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Raviteja
Raviteja 2011-5-1
I tried ztrans command in matlab r2009a and 2010a?
when I type
>>help ztrans
ztrans not found.
Then which version of Matlab supports ztrans command?
If it works in r2009a and 2010a then why I am not getting in my software (r2009a,2010a)?

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回答（1 个）

Paulo Silva
Paulo Silva 2011-5-1
ztrans is a function from the Symbolic Math Toolbox™, you must have that toolbox installed and with a valid licence.
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Raviteja
Raviteja 2011-5-2
Yah! It is showing like this
>>ver
--
---
Symbolic Math Toolbox Version 5.4
Paulo Silva
Paulo Silva 2011-5-2
you should have it unless you deleted it or there's a problem with the installed matlab and toolboxes, use the function pathtool to see if the symbolic toolbox path is there, also try the rehash function, maybe rehash toolbox.
Another way to see if the ztrans function is there, search for ztrans.m with your OS search function.

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