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Method and apparatus for preparing a document containing information in real mathematical notation

  • US 5,559,939 A
  • Filed: 02/10/1995
  • Issued: 09/24/1996
  • Est. Priority Date: 03/19/1990
  • Status: Expired due to Fees
First Claim
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1. For operation on a processing system including a processor, a memory device, a display device, and an input device, a document preparation method comprising the steps of:

  • (a) inputting a mathematical expression in real mathematical notation via said input device for storage in said memory device, the mathematical expression including operators and operands as constituent elements;

    (b) displaying the mathematical expression in real mathematical notation on said display device;

    (c) analyzing the displayed mathematical expression with said processor, by;

    (1) analyzing positional relationships between each operator and respective adjacent operands of the displayed mathematical expression to thereby identify operands associated with each operator; and

    (2) storing the identified associated operators and operands in said memory device;

    (d) when a set of the associated operators and operands presents the displayed mathematical expression as a desired algebraic equation, converting the set of associated operators and operands into a binary tree structure of the desired algebraic equation;

    (e) creating a program for calculating the equation on the basis of the binary tree structure;

    (f) executing the program on said processor; and

    (g) preparing a document including information resulting from step (f).

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