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please help with the error

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dav
dav 2013-10-13
回答： Walter Roberson 2013-10-13
I used the code:
a := series(sin(x), x)
and it gave me the error:
Error: "a" was previously used as a variable,
conflicting with its use here as the name of a function or command.
See MATLAB Programming, "How MATLAB Recognizes Function Calls That Use Command Syntax" for details.
Can someone please help me with this?
dav
  2 个评论
Jan
Jan 2013-10-13
This is not Matlab. Do you mean MuPad?
dav
dav 2013-10-13
no.. I want to get the taylor series expansion of y=(a+bX^2)^0.5
Can you please help me with it

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回答（2 个）

Image Analyst
Image Analyst 2013-10-13
There is no := operator in MATLAB. Get rid of the colon.
  2 个评论
dav
dav 2013-10-13
still doesnt work!
Image Analyst
Image Analyst 2013-10-13
All right, then how can we help? Have you provided anyone with what might be necessary to help you, like error messages, an m-file, or data file? What toolbox is "series()" in? You didn't list your toolboxes in the Product box either.

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Walter Roberson
Walter Roberson 2013-10-13
syms x
a = feval(symengine, 'series', sin(x), x);

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