The Function Fudger

Enter an expression involving the variable x, the degree of the approximation, and its lower and upper bounds. The computer will then find the least-squares polynomial approximation.

Here is what to put in each box. Function: expression to approximate; steps: precision; digits: digits displayed for each term; degree: degree of the polynomial plus one; lower and upper: lower and upper bounds of the approximation.


steps: 1 < < ∞
digits: 1 < < ∞
degree: 0 < < ∞
lower: -∞ < < ∞
upper: -∞ < < ∞

Best Polynomial Approximation: