ASKSAGE: Sage Q&A Forum - Latest question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 08 Dec 2014 03:54:22 -0600What's wrong with Лобачевский function?http://ask.sagemath.org/question/25163/whats-wrong-with-lobachevskii-function/ Hello,
I tried to plot the following function $$Л(\theta) = -\int_0^\theta \log |2 \sin(u)| du$$ (called the Lobatchevski function). So I started with
sage: theta, u = var('theta', 'u')
sage: assume(0 < theta < pi)
sage: assume(theta, 'real')
sage: el(theta) = - integral(log(abs(2*sin(u))), u, 0, theta)
The last command just asks maxima. Maxima starts computing (one CPUS is running 100%) but never stops.
VincentvdelecroixMon, 08 Dec 2014 03:54:22 -0600http://ask.sagemath.org/question/25163/