Quadruple jump controversy Quadruple jump controversy At the 2010 Winter Olympics held in Vancouver, British Columbia, Canada, the final results of the men's figure skating competition sparked what has been dubbed a quadruple jump controversy. At the heart of it lies a quadruple jump, the toughest jump there is in figure skating, done in combination with a triple toe loop, which Evgeni Plushenko of Russia landed in both his short and long programs. Evan Lysacek of the United States, however, did not include quads in either of his programs. Plushenko, who led Lysacek by half a point after the short figure skating program,
Quadruple-precision floating-point format implement nearly quadruple precision using "pairs" of double-precision values is sometimes called double-double arithmetic. Using pairs of IEEE double-precision values with 53-bit significands, double-double arithmetic can represent operations with at least a 2×53=106-bit significand (actually 107 bits except for some of the largest values, due to the limited exponent range), only slightly less precise than the 113-bit significand of IEEE binary128 quadruple precision. The range of a double-double remains essentially the same as the double-precision format because the exponent has still 11 bits, significantly lower than the 15-bit exponent of IEEE quadruple precision (a range of for double-double versus for