internal number representation

10082016, 08:37 PM
Post: #6




RE: internal number representation
Two key differences between HP_Real and IEEE 754/854 formats is that HP_Real doesn't have signed zeroes and doesn't have denormalized numbers (no gradual underflow).
The 15digit HP_Real can be used for internal calculations: to provide guard digits and to simulate gradual underflow of 12digit HP_Real values, among other uses. The greater exponent range allows things like more direct calculation of sqrt(x^2+y^2) — by using 15digit HP_Reals for the operations even though x and y are 12digit HP_Real values. The two systems also have different rounding behaviours. NaNs are also treated differently (especially when used via PPL). 

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internal number representation  retoa  10052016, 06:25 AM
RE: internal number representation  Tim Wessman  10052016, 03:42 PM
RE: internal number representation  retoa  10052016, 09:27 PM
RE: internal number representation  David Hayden  10072016, 01:05 AM
RE: internal number representation  retoa  10072016, 07:30 AM
RE: internal number representation  jte  10082016 08:37 PM
RE: internal number representation  cyrille de brébisson  10102016, 10:05 AM

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