Abstract: The present invention relates to the field of information display as well as information processing. An example of the information may be data. A number of inventive aspects are disclosed in this specification. In a first aspect of invention, the invention relates to the manner in which windows are displayed and tiled, for example on a computer. In one embodiment, the invention relates to the resizing of display windows. In a second aspect of invention, the invention relates to the processing of information. In one embodiment, the invention relates to any spreadsheet, matrix, redefinition hierarchy, the building of mathematical models and/or circular reference.