** Recursive function used by QUAD8 . **

** [Q,cnt] = quad8stp(F,a,b,tol,lev,w,f,Q0) tries to approximate **

** the integral of f(x) from a to b to within a relative error of tol. **

** F is a string containing the name of f. The remaining arguments are **

** generated by quad8 or by the recursion. lev is the recursion level. **

** w is the weights in the 8 panel Newton Cotes formula. **

** x0 is a vector of 9 equally spaced abscissa is the interval. **

** f0 is a vector of the 9 function values at x. **

** Q0 is an approximate value of the integral. **

** See also QUAD8 and QUAD . **

** **