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From: | Christian Wacker |
Subject: | Missing factor root test |
Date: | Wed, 17 Mar 2021 16:08:56 +0100 |
User-agent: | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 |
Hello,the derivative of the function func2 = sqrt(abs(x)) * sgn(x) in roots/test_funcs.c is stated to be 1 / sqrt(abs(x)). So it seems that there is a factor of 0.5 missing.
Best regard Christian
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