Cuberoot: Apply first iteration explicitly #11
Merged
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Applying the first iteration explicitly appears to speed up the cuberoot function by a bit over 20%:
Before:
Halley Final: 0.14174999999999999
After:
Halley Final: 0.11080000000000001
There is an assumption that compilers will precompute the constants like
0.7 * (0.7)**3
, and that all will do so in the same manner.