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exp_m1 #10

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huonw opened this issue Jan 13, 2019 · 0 comments
Open

exp_m1 #10

huonw opened this issue Jan 13, 2019 · 0 comments
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huonw commented Jan 13, 2019

Potentially also exp2_m1 etc, since packaging that up likely saves a multiplication?
@huonw huonw mentioned this issue Jan 13, 2019
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@huonw huonw self-assigned this Jan 16, 2019
huonw added a commit that referenced this issue Jan 26, 2019
@huonw
Implement exp_m1 and exp2_m1
b16ad3c 
This switches between a Taylor-esque approximation based on x + x/2,
and the "obvious" exp(x) - 1 based on the size of x, with the exact
polynomial and the size threshold chosen by `optimiser`.

Fixes #10.
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