On 21 apr, 15:27, paul womack <pwom...@papermule.co.uk> wrote: > IEEE floating-point standard, supported by almost all modern processors, > specifies that every floating point arithmetic operation, including division > by zero, has a well-defined result. In IEEE 754 arithmetic, a รท 0 is positive > infinity when a is positive, negative infinity when a is negative, and NaN > (not a number) when a = 0. The infinity signs change when dividing by -0 > instead. This is possible because in IEEE 754 there are two zero values, plus > zero and minus zero, and thus no ambiguity.
Ah yes, I see, I hadn't considered it that way. Then the question is, is a check for a=0 necessary? Doesn't the arithmetic take this into account automatically (as in, it computes the result as +INF or -INF, depending on the value of Aux_1)? Best, Bart --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
