Find Quadratic Cubic Equation is a simple program to find an equation from 4 points combination. You just insert 4 points (round numbers is recommended), and then the program will try to find the equation likeliest, any 6 general equations:
I : Un = a + b(n-1) > Linear Equation,
II : Un = a.n^2 + b.n + c > Quadratic Equation,
III : Un = a.r^n > Geometry Equation,
IV : Un = a.r^n + b > Sum Geometry Equation,
V : Un = n^x > Rank Equation,
VI : Un = a.n^3 + b.n^2 + c.n + d > Qubic Equation.
The interface is easy-to-use and similar to the command line window. You simply have to insert the corresponding equation note and the program will try to find an equation.