Tracing and storing points of interest on a graphing calculator
First Claim
Patent Images
1. A graphing calculator having a points of interest user interface comprising:
- a screen capable of displaying at least straight lines in any direction and a cursor;
a key panel having keys at least capable of selecting positions of said cursor and moving said cursor horizontally or vertically on said screen;
a processor programmed to provide the points of interest user interface having the following steps;
a) providing an input display to allow the user to define a plurality of equations, inequalities and vertical lines, b) providing a points of interest display screen, c) displaying graphs of the defined equations, inequalities and vertical lines on the points of interest display screen, and d) jumping the cursor between points of interest, comprising intersection points of the graphs on the points of interest display screen, in response to a single key command.
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Abstract
A graphing calculator (10) having an X=Editor with inequalities. The calculator (10) is programmed to provide an X=Editor which displays one or more “X=” to allow input of a vertical line inequality. The X=Editor allows the user to input an inequality symbol and a constant for each X, allows the user to select or deselect each X, and a graph function to graph each selected X on the X=Editor display.
17 Citations
22 Claims
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1. A graphing calculator having a points of interest user interface comprising:
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a screen capable of displaying at least straight lines in any direction and a cursor;
a key panel having keys at least capable of selecting positions of said cursor and moving said cursor horizontally or vertically on said screen;
a processor programmed to provide the points of interest user interface having the following steps;
a) providing an input display to allow the user to define a plurality of equations, inequalities and vertical lines, b) providing a points of interest display screen, c) displaying graphs of the defined equations, inequalities and vertical lines on the points of interest display screen, and d) jumping the cursor between points of interest, comprising intersection points of the graphs on the points of interest display screen, in response to a single key command. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A graphing calculator having a points of interest display comprising:
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a screen capable of displaying at least straight lines in any direction and a cursor;
a key panel having keys at least capable of selecting positions of said cursor and moving said cursor horizontally or vertically on said screen;
a processor programmed with points of interest programming to perform the following steps;
a) providing an input display to allow the user to define equations and vertical lines, b) displaying graphs of the defined equations and vertical lines on the points of interest display, c) jumping the cursor between points of interest comprising intersection points of the graphs on the points of interest display screen, in response to a single key command which moves the cursor to another point of interest with each key activation, and d) storing the location of the cursor at points of interest in response to a store command. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for providing a user interface for a graphing calculator having the following steps:
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a) providing an input display to allow the user to define a plurality of equations, inequalities and vertical lines, b) providing a points of interest display screen, c) displaying graphs of the defined equations, inequalities and vertical lines on the points of interest display screen, and d) jumping a cursor between points of interest comprising intersection points of the graphs on the points of interest display screen, in response to a single key command. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification