A computerized editing and composing system and method which conveniently and directly edits and composes complex scientific formulas, chemical structural formulas and music staves. The system comprises a computer, an I/O interface, an input device, a character library and character generating system,...http://www.google.fr/patents/US4980840?utm_source=gb-gplus-shareBrevet US4980840 - Computerized editing and composing system
