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exp and log function accuracy is too low for double-double and quad-double #438

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Ravenwater opened this issue Aug 16, 2024 · 0 comments
Open

exp and log function accuracy is too low for double-double and quad-double #438

Ravenwater opened this issue Aug 16, 2024 · 0 comments
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@Ravenwater @jamesquinlan @CalebWentworth
Labels
enhancement numerical accuracy functional issues regarding numerical accuracy numerical investigation Investigation to explain/quantify numerical properties of a calculation
Milestone
V3

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@Ravenwater
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double-double should yield 32 digits of precision and quad-double should yield 64 digits of precision. Current function approximation precision is around 14 digits.

The exp() function is at the base of log and pow functions as well, so fix that one first.
@Ravenwater Ravenwater added enhancement numerical investigation Investigation to explain/quantify numerical properties of a calculation numerical accuracy functional issues regarding numerical accuracy labels Aug 16, 2024
@Ravenwater Ravenwater added this to the V3 milestone Aug 16, 2024
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@Ravenwater Ravenwater

@jamesquinlan jamesquinlan

@CalebWentworth CalebWentworth

Labels
enhancement numerical accuracy functional issues regarding numerical accuracy numerical investigation Investigation to explain/quantify numerical properties of a calculation
Projects
Universal Number Library
Status: Ready
Milestone
V3
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@Ravenwater @jamesquinlan @CalebWentworth