Am 06.12.2014 um 17:03 schrieb Yuxiang Wang:
Hi Richard,
I do get your point that we don't have to make the same mistake with other
systems, but I do think there is a benefit for consistency, if they have a
purpose in doing that design. For most systems, sqrt() returns the
principal/positive square root, so there is only one unique value.
What's your list of "most" systems?
'cause numeric evaluation is quite different from symbolic math, and I
suspect that those "most" systems are those that do numeric calculations
- but that's just a hunch and I'd like to know for sure.
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