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Who was the inventor of a mechanical calculator for adding number?
Wiki User
∙ 11y ago
You may be referring to the Curta, the small, hand-cranked mechanical calculator
introduced by Curt Herzstark in 1948. It can be used to perform addition, subtraction,
multiplication, division, square roots and other operations. It was considered the most
accurate calculator until the introduction of the electronic ones in the early 1970s.
Wiki User
∙ 11y ago
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What was the first job done by the very first computer?
Math. The abacus was a basic mechanical adding machine. Pascal is credited with building the first mechanical machine computer in 1642 which was used for calculating sums. In 1939, Stibitz and S.B. Williams built the Complex Number Calculator, the world's first electrical digital computer.
Can mechanical calculator used for octal number or binary number?
In theory, yes.In practice, you would have to change the mechanism from its decimal design to the octal or binary design.
Why don't I get the same answer when I calculate the percentage on a calculator as I do on a adding machine?
Adding machines have rounding features, so that answers are rounded to the number of decimal places set by a switch. Typically you set anywhere from 0 to 6 decimal places.
What is an electronic number finder?
Calculator
What number is r on a calculator?
There is no such number on a calculator. If you see "R" on a calculator, it is probably some calculation - for example, conversion from polar to rectangular coordinates. Check the manual for your calculator.
What is the biggest number you can write on a calculator?
This will depend on the type of calculator you have. This will depend on the type of calculator you have.
What is the maximum number you can get in calculator?
10^1000
How can you put a mixed number in the calculator?
Buy a good calculator.
How do you store and recall a number on a calculator?
if it is a scientific calculator you just have to press replay at the top of the calculator
Which machine could add and subtract number?
The calculator is the most common machine to add and subtract numbers. Computers are also very good at this and are adding and subtracting for us all the time.
Why is the keypad of a calculator different from that of a telephone?
The calculator keypad is based on the configuration of older, mechanical calculators and adding machines. Even back when there was no such thing as a "calculator" there were mechanical devices that could add, subtract, multiply and divide. The layout of the keys in these machines were always with the smaller numbers on the bottom and the larger numbers on the top. The 100 key machines had a row of zeros across the bottom, a row of ones next in the line above and twos after that. They went on up to a row of nines at the top. You would punch in your number, using whatever keys were necessary. then depending on what you wanted to do, you would either punch in the next number or you would put in your operation. The phone started out with a rotary dial with the one at the top of the dial and the beginning of the alphabet starting with the number two, counter clockwise on the dial. This meant you turned the dial clockwise when you used it. This is the more comfortable direction to turn a dial with your finger. When push button phones came out, they just naturally followed the small numbers at the top rule that was started with the rotary dial phones.
How do I find a person who stole my pencil case with my calculator in it then called me and said I have your calculator hostage My phone number was on the calculator it was a private number?
save his number and go to the police then say he stole my pencilcase and my calculator. and anyway are you cheating because you schoudent bring a calculator in the school. You have luck LOL
