Hi I am rather new to mathematica. I want to find a numerical solution for the parameters a, b and c in the exponential function of type
y=a*exp(-b * x)+c
when three points are given: (x1,y1); (x2,y2); (x3,y3);
I tried several functions, such as:
SolveAlways[{y1 == a*Exp[-b * x1] +c , y2 == a*Exp[-b * x2]+c , y3 == a*Exp[-b *x3]+ c },{a,b,c}]
which was not successful, however.
Is there a way to solve this using Mathematica?
Thanks in advance, Michael
