Willim Seward Burroughs was the first to create a working calculator.
CALCULATOR
A scientific calculator.
does it have graph calculator
If you have a computer, you already have the calculator that is part of the computer's program.
Buy a good calculator.
OK Calculator was created in 2002.
Curta calculator was created in 1948.
Calculator - comics - was created in 1976.
Nezarr the Calculator was created in 1977.
Graphing calculator was created in 1985.
Expensive Desk Calculator was created in 196#.
Practical Astronomy with your Calculator was created in 1979.
Cloudy Cloud Calculator was created on 1997-12-10.
mr.caculator
French Blaise Pascal
To be more of a convenience for people.
programaticly