Improve ibeta power term calculation in the Sterling case #1025
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If `guess` passed to `inverse_discrete_quantile` cannot be represented as floating point number, it is possible that `guess + 1` or `guess - 1` does not change the value at all and we are stuck in infinite loop inside `round_to_floor` or `round_to_ceil`. Fix this by increase/decrease more than 1 in these cases. Example code to reproduce this: ```c++ boost::math::binomial_distribution<> dist(9079765771874083840, 0.561815); boost::math::quantile(dist, 0.0365346); ```
…the non Lanczos case). Completes work started here: #1007
Fixes Conflicts: test/test_binomial.cpp
(Sterling version)
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One failure is a network/clone issue, merging... |
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Completes #1007.