Formula For this graph.

[thamizhinpan]

Can any one give a formula for like this graph

[zaza]

That's not a graph, it's a wiggly line. A graph needs axes and a scale to be of any use whatsoever.

If you want something that will look roughly like that, however, then can I recommend y = x^3?

zaza

[Rassis]

If you consider the X axis and the Y axis as being coincident with the left hand side and the bottom side of the green rectangle, respectively, then, the function must be a polynomial of 3rd order of the form: y = k1.x^3 – k2.x^2 + k3.x + k4.

Rui

[yrwyddfa]

If you consider the X axis and the Y axis as being coincident with the left hand side and the bottom side of the green rectangle, respectively, then, the function must be a polynomial of 3rd order of the form: y = k1.x^3 – k2.x^2 + k3.x + k4.

Rui

If you have the list of data points and you want to derive the equation look at this

[CreativeDreamer]

VBHelper site has code to find the equation of the best fit curve

w w w .vb-helper.com/howto_net_polynomial_least_squares.html