Electromagnetic forming methods suitable for creating surface features on a shape memory alloy are described. The preferred embodiment comprises a hiking staff containing 2-D map data and or 3-D topographical representations corresponding with specific geographic regions and or features. A contact line is provided between the right side terminal edge and the left side terminal edge to divide the pocket into a first and a second pocket. Besides, the portable information terminal equipment performs conventional informing processes, such as ringing, light emitting, message or image display and the like, in combination with the openclose or rotative operation. The distance metric provides a soft thresholding framework for the background removal. A method of embodiments of the invention includes performing a preliminary register pressure minimization on program points during a compilation process of a software program running on a virtual machine of a computer system.