From: gotoken@... Date: 2020-11-14T01:41:58+00:00 Subject: [ruby-core:100846] [Ruby master Bug#17318] Raising float to the power of other issue Issue #17318 has been updated by gotoken (Kentaro Goto). That depends on your purpose or background of the problem. In non-math situations, `power(a, b)` should not return any ordinary number for given `a`<0 where `power(a, b)` stands for "`a` to the power of `b`" over real, just identical to your notation `raise(a, b)`. In such cases, so the function may raise an exception or returns `float::NAN` if `a<0` or `a==0 && b==0` held. ---------------------------------------- Bug #17318: Raising float to the power of other issue https://bugs.ruby-lang.org/issues/17318#change-88488 * Author: deXterbed (Manoj Mishra) * Status: Rejected * Priority: Normal * ruby -v: 2.6.3 * Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN ---------------------------------------- Raising a negative float to another float results in a complex number. Interestingly, doing the same thing without using variables works fine! Sample Snippet: $ irb 2.6.3 :001 > x=-0.4790529833050308 => -0.4790529833050308 2.6.3 :002 > y=0.9918032786885246 => 0.9918032786885246 2.6.3 :003 > x**y => (-0.48179173935576963+0.012409246172848264i) 2.6.3 :004 > -0.4790529833050308**0.9918032786885246 => -0.4819515219418196 -- https://bugs.ruby-lang.org/ Unsubscribe: