Find the polynomial of degree four or less that fits the unequally- spaced arguments of x: -0.2, -0.05, 0, 0.4, 0.5, 3. According to Lagrange's formula, the desired polynomial can be written as f(x) =...

Extracted text: Find the polynomial of degree four or less that fits the unequally- spaced arguments of x: -0.2, -0.05, 0, 0.4, 0.5, 3. According to Lagrange's formula, the desired polynomial can be written as f(x) = 2.338L.(x) + 1.765234375L1(x) + 1.6L2(x) + 0.592L3(x) + 0.4375L4(x) + 165.25L5(x)