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$Version (* "10.4.1 for Mac OS X x86 (64-bit) (April 11, 2016)" *) Let m = <pastebin monster>. ns1 = NullSpace[m]; ns2 = NullSpace[m, Method -> "OneStepRowReduction"]; diff = ns1 - ns2; RootReduce[diff] (* {{0, 0, 0, 0, 0, 0, 0, 0}} *) So they're equivalent in V10.4.1. Update: Checking correctness After many minutes, this returns ...


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I tried this problem (fed the matrix into an object called m) with 10.3 on a Macbook pro running OS X 10.10.5 (Yosemite). Both methods yield an empty Nullspace, though onesteprowreduction took much longer. So it looks like it hasn't been fixed in 10.3 :(. Another possibility remains. @scott-morrison - can you demonstrate that it really is in the kernel? ...



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