to any excel wizards out there,
i need to write a user defined function in excel 2010 that takes two inputs, the upper and lower range and then solves a sextic equation with real coefficients.
ie between the limits of 8>x>1 solve x^6-7x^5+4x^4-14x^3+12x^2-5x+23=0
its really doin my sweed in...