In this study we analyze students' understanding of two-variable function; in particular we consider their understanding of domain, possible arbitrary nature of function assignment, uniqueness of ...
Let A be a finite-dimensional commutative algebra over R and let Cr A(U), Cω (U, A) and OA(U) be the ring of A-differentiable functions of class Cr, 0 ≤ r ≤ ∞, the ring of real analytic mappings with ...