Calculator with differentiated introduction of the integer and decimal

摘要

1. Calculator with differentiated introduction of whole and fractional part, of the type formed by a casing, a housing for batteries and / or connection to external power supply, a keyboard input operands, operations and / or activation and deactivation, and a display display; characterized in that the keyboard has two groups of number keys respectively separate introduction of whole and fractional part, while the display means includes display discriminated whole and fractional part of the operands and / or results.