(c18) (sqrt(4-2^(2/3)*sqrt(3)*5^(1/6)),%%=denest_radicals(%%)) Time= 56792 msec. 2/3 1/6 (d18) sqrt(4 - 2 sqrt(3) 5 ) = 2/3 5/6 2/3 1/3 1/6 2 5 1/3 2 sqrt(3) 5 1/6 1/3 2 (- --------- + 2 sqrt(5) + ----------------- - 2 5 + 2 sqrt(3)) 2 2 ----------------------------------------------------------------------------- 3 or more prettily: 5/6 1/6 1/3 2/3 1/6 5 2 sqrt(5) 5 sqrt(4 - sqrt(3) 5 ) = - --------- + ------------ + --------------- 3 sqrt(2) 3 sqrt(2) sqrt(3) 5/6 1/6 1/6 2 5 2 - --------- + ------- 3 sqrt(3) Do I hear six? --rwg laminectomy <-> metonymical