Texas Instruments Corporation

Todd M Wostrel

Harshal Shantanu Chhaya

Jamie Lane Graves

David M Newman

Robert Allen Lorentzen

Franklin A Wattenberg

Craig L Stewart

A method for associating handheld calculators with a network host system of a classroom network that includes receiving a service set identifier (SSID) of the classroom network by a handheld calculator, wherein the SSID includes a network mode indicator, and operating the handheld calculator according to the network mode indicator. The method may also include operating the handheld calculator in a configuration mode in which the handheld calculator sends a request for association to the network host system, wherein the request includes a unique identifier of the first handheld calculator, and acceptance of the request by the network host system, wherein authentication information for the handheld calculator is stored by the network host system to indicate that the first handheld calculator is associated with the classroom network.

Wireless device network association

Various systems and methods for equation graphing are disclosed herein. For example, some embodiments of the present invention provide methods for graphing equations in a substantially real time environment. Such methods include receiving a first equation and a second equation, and parsing the equations such that they are each formatted in a common format. In addition, the first parsed equation is reduced to one or more first equation shapes that provide a graphical representation of the first equation. A determination is made abut whether a real time control has been satisfied. Where the real time control has been satisfied, the first equation shapes are painted to a display prior to reduction of the second parsed equation to one or more second equation shapes.

Systems and methods for multiple equation graphing

A graphing calculator having a user interface that allows the user to easily specify a mathematical function. The user interface allows the user to specify a constant function, a linear function, or a non-linear function in a simplified input format. The user interface can also be implemented on devices that have limited input and output capability. An embodiment of the present invention is a graphing calculator, which allows the user to easily input a population growth rate function. The user interface of the present invention calculator helps the student to more readily adjust a function and observe the result of the adjustment. Similarly, other embodiments include the same user interface functionality in a software application package that is executed on a computer or graphing calculator.

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Plano, TX, United States of America

Todd M Wostrel