ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Sun, 22 Mar 2015 14:10:44 +0100Complex analysis. Compute bar derivativehttps://ask.sagemath.org/question/26279/complex-analysis-compute-bar-derivative/ Can sage do complex analysis? I was unable to find documentation upon a quick web search.
For instance, I would like to define $f(z) = z \bar{z}$ and ask sage to compute $\displaystyle \frac{\partial f}{\partial \bar{z}}$, is that possible?
Of course I could treat $z$ and $\bar{z}$ as independent variables, but that is not what I'm asking.SeubSun, 22 Mar 2015 14:10:44 +0100https://ask.sagemath.org/question/26279/Limit of complex functionshttps://ask.sagemath.org/question/10714/limit-of-complex-functions/Hi,
Suppose I have 2 complex numbers, z and z1 , where z = 1+2*I and z1 = 3 + 4*I (just an example). How can I compute the following: some_function = z * z1 and I want to know how to find the limit of some_function when z = z1.
I tried hard to find an answer. I used def to define a function, I could define the complex numbers and I can use the limit with rational / real values, but, when I use a complex number, the limit just return the entire explession.
Thank you for any idea / URL to help me.Luiz Roberto MeierFri, 08 Nov 2013 16:03:01 +0100https://ask.sagemath.org/question/10714/3d Complex function plothttps://ask.sagemath.org/question/9843/3d-complex-function-plot/I want to plot a complex function in 3d. And colour it according to the real or imaginary part as in these pictures.
[http://functions.wolfram.com/ElementaryFunctions/Sin/visualizations/5/](http://functions.wolfram.com/ElementaryFunctions/Sin/visualizations/5/)
I know that I can use the complex_plot command to get the 2d plots. But I want the 3d version of the plot like in the above link.
Is there a way to do it with sage ?koukourikosSun, 24 Feb 2013 06:29:57 +0100https://ask.sagemath.org/question/9843/