Abstract: An electronic device includes a touch-sensitive display screen to display a graphical representation of a mathematical relationship and to enable a user to enter a one-dimensional touch gesture thereon for performing a one-dimensional adjustment function for the displayed graphical representation. A display adjustment module interprets the one-dimensional touch gesture and performs the one-dimensional adjustment function. The display adjustment module performs a one-dimensional zoom adjustment function in response to one of a one-dimensional pinch touch gesture and a one-dimensional spread touch gesture. The one-dimensional zoom adjustment function increases or reduces a displayed range of values in a first dimension while maintaining unchanged a displayed range of values in a second dimension of the displayed graphical representation.

Abstract: The present subject matter relates to verifying functionality restrictions of a computing device. In an example implementation, the verification includes generating a notification message based on a verification code received in the computing device and status of a configuration mode in the computing device. When the status of the configuration mode is active, at least one functionality of the computing device is restricted. The configuration mode can be activated in the computing device by execution of a configuration file. The generated notification message is provided, which enables verifying that the at least one functionality of the computing device is restricted.

Abstract: Examples disclose selecting an error calculation corresponding to a measure of goodness of fit and identifying a fit type among multiple fit types based on the selected error calculation. The identified fit type indicates a better fit type of goodness of fit than the multiple fit types. The examples further disclose providing the goodness of fit based on the selected error calculation and the identified fit type.

Abstract: An electronic device includes a touch-sensitive display screen to display a graphical representation of a mathematical relationship and to enable a user to enter a one-dimensional touch gesture thereon for performing a one-dimensional adjustment function for the displayed graphical representation. A display adjustment module interprets the one-dimensional touch gesture and performs the one-dimensional adjustment function. The display adjustment module performs a one-dimensional zoom adjustment function in response to one of a one-dimensional pinch touch gesture and a one-dimensional spread touch gesture. The one-dimensional zoom adjustment function increases or reduces a displayed range of values in a first dimension while maintaining unchanged a displayed range of values in a second dimension of the displayed graphical representation.

Abstract: Examples disclose a computing system comprising a computing device with a display surface to detect a selection of functionality from a list of functionalities to be disabled on a calculator. Further, the computing device creates a custom configuration based on the selected functionality. Additionally, the examples also disclose a calculator with a processor to integrate the custom configuration, the custom configuration restricts the selected functionality on the calculator.

Abstract: Examples disclose selecting an error calculation corresponding to a measure of goodness of fit and identifying a fit type among multiple fit types based on the selected error calculation. The identified fit type indicates a better fit type of goodness of fit than the multiple fit types. The examples further disclose providing the goodness of fit based on the selected error calculation and the identified fit type.

Abstract: Examples disclose a computing system comprising a computing device with a display surface to detect a selection of functionality from a list of functionalities to be disabled on a calculator. Further, the computing device creates a custom configuration based on the selected functionality. Additionally, the examples also disclose a calculator with a processor to integrate the custom configuration, the custom configuration restricts the selected functionality on the calculator.

Abstract: In one implementation, a calculator includes a first coupler, a second coupler, and a processor. The first coupler configured to form a complementary fit with a coupler of a first calculator. The second coupler configured to form a complementary fit with a coupler of a second calculator. The processor operatively coupled to the first coupler and to the second coupler.