rechensystem

摘要

rechensystem (10) to subtraction and / or addition of numbers, characterized by the fact that there are two rechenelemente (12, 14) comprises, respectively, a linear zahlenskala (16, 18) inwith the zahlenskala (16) of the first rechenelements (12) parallel to the zahlenskala (18) of the second rechenelements (14) längsverschiebbar.