(also at x = -2), so that the Fundamental theorem cannot be used. Indeed. Limit[F[x], x -> 2 ... (x - 2 ArcTan[Sin[x]/(Cos[x] + a + Sign[a] Sqrt[a^2 - 1])])/(Sign ...
Mar 29, 2021 ... ... (x)/2 + exp(x)*cos(x)/2). But I think it must also include a 'constant ... You can also get round the problem using a dummy limit, for example:.
Nov 11, 2012 ... In [2]: limit((n+cos(n))/n,n,oo) Out[2]: nan Should be 1, due to cos ... Thus it can compute limits like cos(1/x), x->oo [b/c 1/x -> 0 ...
Feb 2, 2013 ... # limit to the base plot gets changed from 2 to 8, which is not ... 2 & x <= 8, cos(x), NA) f + stat_function(fun = g, color = "blue ...
Aug 18, 2009 ... Integrate::ilim: Invalid integration variable or limit(s) in x . 2. Integrate[f[x], x ] Unless you can give a explanation of what you want ...
Jun 24, 2011 ... ... x or x*x => x**2. In this case, no such simplifications needed to be ... Out[1]: cos(x). In [2]: Derivative(sin(x), x). Out[2]:. d.
Jul 12, 2005 ... so the solution is f(x) = -2 Cos [ sqrt(2) ArcCos( - i x/a) ] I don't even think there's an ambiguity about the definition of ArcCos here, since ...
$$\displaystyle I=\int\cos^2(x)du=\int(1-u^2)du=u-u^3/3=\sin(x)-\sin^3(x)/2+ ... In this particular example, negating the limit gives $\displaystyle Ei(-x) ...
Aug 18, 2021 ... As I said in my previous comment the ⌊x⌋ in the upper limit can be written more simply as x. ... x|⌋+⌊|cosy|⌋=2. 2 · Evaluate the integral : ∫ln20 ...
(http://code.google.com/p/sympy/issues/detail?id=2026). Basically, the following breaks the preprocessing code in risch_integrate: In [1]: exp(2*x).subs(exp(x) ...