[Equest-users] Curve fitting

[sambhav tiwari]

Hi All,
            Each time i create a new curve by putting same values of
raw data i am getting different values of coefficients a,d,c,d for
cubic equation(a+bx+cx2+dx3) the solution (a,b,c,d) should be same
only if raw data values are same in each curve then why
coefficient(a,b,c,d) values are changing?


Thanks
Sambhav