ELECTRONIC DEVICE WITH TOUCH GESTURE ADJUSTMENT OF A GRAPHICAL REPRESENTATION

摘要

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.