Margarita Klagkou

Hello! I am facing a difficulty into developing a multivariable function of a dependent variable "x". Let's assume that "x" is a function of 6 independent variables a,b,c,d,e,f,g. From experimental data i have developed 6 functions, each representing how "x" changes by each of the paremeters when the other 5 have a specific value. So, what i have right now is for example: 1. x=f1(a,1,2,3,4,5) 2.x=f2(6,b,7,8,9,10) 3. x=f3(11,12,c,13,14,15) ...... 6.x=f6(16,17,18,19,20,g) What I need is to develop...