Pascal's calculator

The machine was a bridge in between Pascal's calculator and a calculating clock.

He built 20 of these machines (called Pascal's calculators and later Pascalines) in the following ten years.

In 2008, the system was brought up to a new level and the resulting language termed "Pascaline" (after Pascal's calculator).

In Pascal's calculator each input wheel is totally independent from all the others and carries are propagated in sequence.

Pascal's Calculator could add and subtract two numbers directly and multiply and divide by repetition.

The 17th century marked the beginning of the history of mechanical calculators, as it saw the invention of its first machine, Pascal's calculator, in 1642.

Blaise Pascal designed and constructed the first working mechanical calculator, Pascal's calculator, in 1642.

It was similar to Pascal's calculator but instead of using the energy of gravity Boistissandeau used the energy stored into the springs.

Blais Pascal created the first calculating machine capable of mathematical functions in the 17th century simply called Pascal's Calculator.

He made use of principles from previous mechanical calculators like the stepped reckoner of Leibniz and Pascal's calculator.

Pascal's calculator had two sets of results digits, a black set displaying the normal result and a red set displaying the nines' complement of this.

In 1725, the French Academy of Sciences certified a calculating machine derived from Pascal's calculator designed by Lépine, a French craftsman.

Blaise Pascal invented the mechanical calculator in 1642; it was called Pascal's Calculator or Pascaline and was the only working mechanical calculator in the 17th century.

IP Pascal implements the language "Pascaline" (named after Blaise Pascal's calculator), which is a highly extended superset of ISO 7185 Pascal.

Pascal's calculator was to be used for additions and subtractions (he called it the calculating box of Pascal) and a machine using wheels with movable teeth was to be used for multiplications and divisions.

Pascal's calculator was limited by its carry mechanism which forced its wheels to only turn one way, so it could add but, to subtract, the operator had to use of the method of complements which required as many steps as an addition.

While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, used in the arithmometer, the first mass-produced mechanical calculator.

In 1642, in an effort to ease his father's endless, exhausting calculations, and recalculations, of taxes owed and paid, Pascal, not yet 19, constructed a mechanical calculator capable of addition and subtraction, called Pascal's calculator or the Pascaline.

Leibniz had invented his namesake wheel and the principle of a two motion calculator, but after forty years of development he wasn't able to produce a machine that was fully operational; this makes Pascal's calculator the only working mechanical calculator in the 17th century.

In 1673, the French clockmaker René Grillet described in Curiositez mathématiques de l'invention du Sr Grillet, horlogeur à Paris a calculating machine that would be more compact than Pascal's calculator and reversible for subtraction.