This enhancement has been incorporated in Release 2012a (R2012a). For previous product releases, read below for any possible workarounds:
The ability to generate a symbolic expression for the Taylor Series of a function of several variables is not available from the MATLAB command line. The following example computes the first terms of the taylor series of f with respect to the variable x around the point x0.
taylor(f, x = x0)
As a workaround, the Multivariate Taylor Series may be generated within the MUPAD Notebook interface if you have the Symbolic Math Toolbox (check the output of VER).
The following example may be executed within the MUPAD Notebook for the function f:
mtaylor(f, [x = x0, y = y0, ...])
This computes the first terms of the Multivariate Taylor Series of f with respect to the variables x, y etc. around the points x = x0, y = y0 etc.
