Elementary symmetric polynomials
MuPAD® notebooks are not recommended. Use MATLAB® live scripts instead.
MATLAB live scripts support most MuPAD functionality, though there are some differences. For more information, see Convert MuPAD Notebooks to MATLAB Live Scripts.
polylib::elemSym([x1,...,xn], k) returns
k-th elementary symmetric polynomial in the
A given list
l is a valid first argument
only if its elements can be used as indeterminates of a polynomial
The first elementary symmetric polynomial is just the sum of its variables:
Indeterminates may also be e.g. trigonometric functions:
polylib::elemSym([sin(u),cos(u), exp(u)], 2);
List of indeterminatess
For more information about elementary symmetric polynomials, see v.d. Waerden, Algebra, vol. 1.