SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Launch Cantor and select the Qalculate backend 2. Select Plot from the Plot menu 3. Enter any options or no options and click OK OBSERVED RESULT The application crashes (Segmentation fault) EXPECTED RESULT Plot is displayed or validation messages are displayed SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Slackware 15.0 amd64 (available in About System) KDE Plasma Version: 5.23.5 KDE Frameworks Version: 5.90.0 Qt Version: 5.15.3 ADDITIONAL INFORMATION I've used a newer version of Cantor (22.12.3) and the Plot menu isn't even there. Still I think I should report this.
Qualculate doesn't support any plotting and it was was wrong to show the Plot menu for it. It was fixed in the past and the plot menu is not available for Qualculate in the current version of Cantor. Please update to a more recent version of Cantor. You're using Cantor 21.12 which is from 2021...