The invention features a system for microlithography that includes a mercury light source configured to emit radiation at multiple mercury emission lines, a projection objective positioned to receive radiation emitted by the mercury light source, and a stage configured to position a wafer relative to the projection objective. The invention relates to incremental forming of sheet material with localised heating and more particularly to a system and method for incrementally forming a sheet blank that is at the same time heated by a dynamically moving heating source. Therefore, the data that are highly frequently read out are held in a RAM so as to be read from the memory card at a decreased frequency. The dosage form may be prepared through blending, dry granulation, or wet granulation, followed by compression into a tablet. This takes place using an algorithm derived from an arc tangent function. A hearing device thus automatically switches off for instance when it is not being worn.