A method and system for the graphical modeling of calculations in a spreadsheet that provides a graphical representation of formulas and data contained in a spreadsheet. The graphical representation consists of nodes and edges connected in a tree or graph structure. The nodes represent operators and...http://www.google.com/patents/US7984371?utm_source=gb-gplus-sharePatent US7984371 - Method and system for the graphical modeling of data and calculations of a spreadsheet
