curve fitting is a very difficult and time wasting method while regrresion is more to use as compare to curve fitting

Curvie fitting is used in mathematics to find a mathematicalmodel that fits your data. The curve fit fins the specific parameters which make that function match your data as closely as possible.

P. G. Guest has written:

'Numerical methods of curve fitting'

Ian Grant Sinclair has written:

'Curve fitting by orthogonal polynomials'

the technique of curve fitting is used in many engineering streames and one of its important applications is that it is also used in industries to study the performance of the company and also to predit the future performence of the company. it very much helps in finiding out operational profit margin (OPM).