Modeless gesture driven editor for handwritten mathematical expressions
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United States of America Patent
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Issued Date -
Mar 18, 2004
app pub date -
Mar 3, 2003
filing date -
Mar 1, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided herein is a pen-based editing system for manipulating mathematical expressions. Through a largely gesture based, directly manipulative interface, the system allows a user to make conventional changes to expressions, such as copy and move, and also to work with the expressions in ways peculiar to the problem domain, including, for example, handling ambiguity, expression fragments and alternate recognitions. The system is a generalization of an online recognizer for mathematical expressions. The system uses the same basic recognition techniques as the online recognizer, however the input information available to the editor is more varied, including mixtures of known and unknown characters and positional relations.
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