Weyl sums of the form for various .
Real part (left graphic) and imaginary part (right graphic) of the fractional derivatives of .
Real part of the fractional derivatives of over the .
Zeros of the continued fraction expansion
Real parts of the roots of the first terms of the denominators of the continued fraction expansion of in the . As increases from 0 to 60, the roots are colored from red to violet and cluster along the branch cuts.