Error in piecewise function

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pchem
pchem 2017-5-4
评论： Walter Roberson 2017-5-5
I keep getting this error when I try to run my code containing a piecewise function:
Undefined function or variable 'privResolveArgs'.
Error in piecewise (line 35)
args = privResolveArgs(varargin{:});
Error in dischargecalc_2017_4_25 (line 65)
avg_e_energy=piecewise(3*10^6 < elec_field_r < 9*10^6, 4.1367*log(elec_field_r)-58.555, 9*10^6 <
elec_field_r < 3*10^7, 5*10^(-7)*elec_field_r+3.0354);
I thought it might be a path error, but I cannot even locate the privResolveArgs function.
>> which privResolveArgs
'privResolveArgs' not found.
When I try to add my entire toolbox folder to the path it does not fix the problem

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回答（1 个）

Walter Roberson
Walter Roberson 2017-5-5
privResolveArgs is a method in the sym class, at toolbox/symbolic/symbolic/@sym/sym.m
Possibly you do not have the Symbolic Toolbox installed or licensed.
  2 个评论
pchem
pchem 2017-5-5
I have the symbolic toolbox installed and followed the procedure to update my license, however it is still giving me the same error message. I have also ensured that the symbolic toolbox is in my path.
Walter Roberson
Walter Roberson 2017-5-5
If
which privResolveArgs
does not give you any result, then you either do not have a current symbolic toolbox installed or else it is not on your MATLAB path.

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