Summary
- some tinkering with npm versions;
- some tinkering with npm versions;
- back to post-release mode;
- tuned signature;
- auto-update due to "isabelle build_vscode";
- tuned;
- tuned --- following hints by IntelliJ IDEA;
- fixed problematic addition operation in the 'approximation' package (previous version used much too high precision sometimes)
- simplified definition