Quadruple jump controversy the early days of the Olympic Winter Games, skaters performed single jumps. By the middle of the 20th century, they had graduated to double jumps. By the 1980s, the triple Lutz was the benchmark for men. Throughout the '80s, it was the triple Axel, though attempts at a quad were already being made. Finally, a quadruple jump became an essential element in the programs of many men in the '90s and into the new millennium. The fact that fewer skaters than ever before attempt to land the toughest element in figure skating, opting to go for points instead, does not
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