Le forum de XCAS

Thanks!

What surprises me is that this is the case even when I don't have complex calculations activated. What if I want to use Xcas in a real analysis course? Are there any settings to restrict calculations to real numbers?

The entry: limit((x**2-1)/(1+surd(x,3)),x,-1) returns the limit 0. And the message about that "surd" was temporarily changed to a fractional exponent. But the entry: subs(simplify((x**2-1)/(1+surd(x,3))),x=-1) returns -6 and the same message about "surd". Am I doing something wrong with the limit co...

Ok, I see that this will be fixed in FLTK 1.5

The following video shows a problem I'm having when scrolling within a geometry entry. I'm not sure if it's a problem in Xcas or FLTK. It's not a big problem, but it would be great if this could be fixed. This is with the latest release compiled from source code on Linux. https://youtu.be/du_xx6qz0h...

Ok, thanks

A few weeks ago I was having problems with Xfce, so I switched to Mate. The first thing I noticed was that Xcas uses a different color palette on this desktop. Is this some kind of FLTK dynamic theme that tries to emulate the Gtk theme? Or is it something internal to Xcas? I'm asking because in Mate...

I compiled xcas from source (latest release) on another laptop running Lubuntu 24. I have the same problem described in the video in my previous post. However, on another computer running Lubuntu 24, I have xcas 1.9.0 installed, and I have no problems with that version. I've also noticed that if I c...

Here a video that show the differences in select with arrows and with the button. I have this issue no matter if I use MATE or Xfce. This is with fltk 1.3.

https://youtu.be/-N3pem7RtBY

Is there any way to change the resolution of images generated when plotting from TeXmacs? It appears that a very high resolution is used in all images.

After insert an expression entry, if a write something and press the arrows, I don't see any highlighted region. The characters just become italic (I suppose this is because they are selected). I have to press the right button "Sel" and then I can see the highlighted region. But if I understand corr...

I understand that (a<b)+c is interpreted as "the result of inequality a<b plus c". But I also understand what you want. However it can be done in this way:

Thanks, it works fine now.

I compiled Xcas from source and linked with fltk 1.3. Here a link to a video that show the problem. Notice both examples use the same point (1,1), which seems to be the problem (Or I think so):

https://youtu.be/8cL6Evk4aD0

Linux, PCLinux OS distro