

fractional exponents


y=e^x

y=e^2.31



define as sigma n=1 to inf ai*x^(1/n)  where ai=0 or 1

i.e. x^1/2 + x^1/4 + x^1/8 + x^1/16

x^1/16 = sixteenth root of x, i.e. b^16 = x