Method on @sym: argnames (f) ¶

Return the independent variables in a symfun.

For a @sym, this always returns the empty sym, but subclasses like @symfun do something more interesting.

Example:

syms x y
f = 2*x*y;
argnames(f)
  ⇒ (sym) []  (empty 0×0 matrix)

See also: @symfun/argnames, symvar, findsym, findsymbols.

Package: symbolic