Version:            (using KDE 4.3.3)
Installed from:    Archlinux Packages

Functions with additional parameters like f(x,t)=1/(x^t+1) cannot be reused in further function definitions. For example an attempt to bind a constant to t by defining g(x)=f(x,2) results in the comma being highlighted in red and the definition is not accepted by the program.

Expected result: such definitions should be allowed.