The simplest computers only know addition, subtraction, multiplication, and division. More complex computers can handle exponential operations, roots, logarithms, trigonometric and hyperbolic functions. 1. An electronic computer for performing operations on numbers or algebraic formulas; Open Calculator 2. A computer program that emulates the functions of an open calculator. 3. A specialized program that automatically conducts some opens up, my calculator. 4. Deposit open calculator, please get in touch with platform open up calculator, etc. 5. Profession (a person who makes a calculation).In the Soviet Union, the term "calculator open" was used to refer to a small-sized computing device, first used in 1973 for the electronics B3-04 google open calculator. Just "open calculators" are called large desktop computing devices. Both desktop and calculators were officially called "ECVM - electronic keyboard computers." Currently, because only the term "open calculator" is used in English, the term "open calculator " has gone out of circulation. In the past, abacs, counts, mathematical tables (especially logarithm tables), logarithmic rulers, and mechanical or electromechanical arithmometers were used for mathematical calculations. Sometimes the calculations required to answer a question about a quantitative thinking criterion on the GRE® General Test take time, such as long division or square root. For such measures, you can use the Calculator that came with the test. Remember that while a calculator can reduce the time it takes to perform calculations, the Calculator will provide results that complement, but not replace, your math knowledge. You need to use your math skills to determine if your Calculator's results are reasonable and how they can be used to answer a question.