Subsections
- activate(), deactivate()
- autoscale()
- attribute()
- book_name(), book_slot(), book_subindex()
- calc()
- ceil(), floor()
- cleanup()
- cls()
- date(), date_and_time(), doty(), doty2date(), time_stamp_nexus()
- delete()
- display()
- dump()
- flag()
- linear_regression(), parabolic_regression()
- get_last_error()
- gra_command()
- key(), keyw()
- max(), min()
- postscript(), print()
- read()
- read_line()
- roi()
- run()
- secnds()
- spectra_dir()
- symbol_alias()
- ssa()
- version()
- yesno(), noyes()
- Special Functions
