Finds for a function f(x) of n-th degree ( n= 3 or 4 ) given as f(x) =*x^n + b*x^(n-1) + c*x^(n-2) + … the numerical values of the unknown coefficients a, b, c, … owing to preset conditions. These conditions may be: a given point P(x|y) as part of the graph of the function f(x), extremum or tangent in x for f´(x), point of inflexion in x as f´´(x)=- ( f´´(x)<>0 also possible ) - or the integral I (x) =nInt( f(x), x_lower, x_upper) between two points. After calculation, the graph F1(X) of the function is plotted. |