The present invention enables comparison of the number of data items between groups. The system may index the biometric corpus based on the prototypes directly or based on prototype-typicality scores. When users simultaneously or sequentially touch the at least one function button and the at least one auxiliary button, the touch device determines that a touch conflict occurs and determines whether to execute a function originally defined by the at least one function button or to execute another function according to the touch conflict. oligomers of the initial substances. The third circuit can generate an accurate internal resistance Rint, an accurate drain to source resistance of a transistor rDS, andor an accurate internal capacitance Cint. The pretensioner has a member movable by an actuating fluid to tension the seat belt webbing.