I downloaded sage math as described on the official page: Installation Guide (using conda/mamba for installation).
But I need to activate the sage environment manually:
mamba activate
mamba activate sage
And I suppose Cantor can’t do that on its own. That’s why I cannot select it as the backend when I launch Cantor.
I installed Cantor from the Software store. It’s version: 26.04.1
How can I get Cantor to work with sage math as the backend in my situation?
The issue arises because Cantor cannot automatically detect the SageMath binary when it is siloed inside a Conda/Mamba environment. To fix this, first identify the exact path to your Sage executable by running ‘which sage’ inside your activated sage environment (usually residing in ~/mambaforge/envs/sage/bin/sage (or similar). Once you have that path, open Cantor, go to Settings → Configure Cantor, and select the ‘Backends’ page. Find the ‘Sage’ backend in the list and click ‘Configure’. In the Path field, manually input the full path to your Mamba-installed sage executable instead of leaving it as sage. Apply the changes and restart Cantor; it should now successfully initialize the backend using the correct environment.
I have a similar problem - installed Sage on Fedora Linux with Conda and Cantor through dnf. When trying to plot 3D graphs, this error message appears:
/bin/sh: line 1: tachyon: command not found
When running Sage from the environment through the cmdline, it works fine.