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4 commits

Author SHA1 Message Date
Fredrik Johansson
0244fe0e46 Fix evil bug in floating-point arithmetic and strengthen test code.
When rounding up, the error bound sometimes came out as 1/2 ulp instead of 1 ulp due to the mantissa rounding up to the next power of two, without a corresponding exponent correction. Fortunately, this should not affect ball arithmetic (which always rounds down).
2014-04-18 16:19:53 +02:00
Fredrik Johansson
ef3a687c04 low-level set_round/normalise code 2013-01-09 16:36:21 +01:00
Fredrik Johansson
3695c29072 more functions, and first version of ball arithmetic 2012-09-01 23:32:52 +02:00
Fredrik Johansson
09990f94bc fmpz based floating-point arithmetic (experimental) 2012-08-05 19:57:08 +02:00