Definition & Betydning | engelsk ord COMPTOMETER

Definitioner af COMPTOMETER

1. mekanisk regnemaskine

Eksempler på brug af COMPTOMETER i en sætning

• Addition is performed exactly the same way, and both the Pascaline and the Comptometer make use of the 9's complement method for subtraction, but in the case of the comptometer it is the operator who must choose the right keys for the subtrahend (each key has its 9's complement written in miniature letter next to it).
• He increased his knowledge of mathematics there, eventually developing and patenting devices including an electromagnetic comptometer, a radar device for ships at sea, a sensitized light bulb, and a portable freezer unit for military use.

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