Noun:

হাত ক্যালকুলেটর,

hand calculator's Usage Examples:

calculating machines for 200 years, and into the 1970s with the Curta hand calculator.

systems represent real-world math more than do paper-and-pencil or hand calculator based mathematics.

conference table are equipped with a personal terminal, about the size of a hand calculator, which can be held comfortably in the lap away from the view of others.

Curtis, which was intended as a "hand calculator" to write down blocks one at a time.

The first hand calculator appeared in 1972 and made the slide rule obsolete overnight.

Synonyms:

close;

Antonyms:

distant; open;