There are many MATLAB features which cannot be included in these introductory notes. Listed below are some of the MATLAB functions and operators available, grouped by subject area. [Source: MATLAB User's Guide, version 3.5] Use the on-line help facility or consult the User's Guide for more detailed information on the functions.

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Jun 29, 2020 · The sum of an empty array is the neutral element 0: >>> np . sum ([]) 0.0 For floating point numbers the numerical precision of sum (and np.add.reduce ) is in general limited by directly adding each number individually to the result causing rounding errors in every step.