Newton-Raphson Enter a valid function, its derivative and chart setting values below: Solver settings: f(x): Function to find a root for.f'(x): Derivative of f(x) function.x0: Your root-guess of f(x). Chart settings: xstep: Step to draw f(x) and f'(x) with.xmin: Chart left-most x-value.xmax: Chart right-most x-value. xroot: Estimated root of f(x). yroot: Should be very close to zero (root).