(2) scientific calculator-it can perform operations such as power, root, exponent, logarithm, trigonometric function, statistics, etc., also called function calculator. It can be software or a physical object.
(3) Programmer calculator-a calculator specially designed for programmers. Its main feature is that it supports And, Or, Not, Xor: the most basic AND-NOR and XOR operations, as well as shift operations LSH and RSH: full names are left shift and right shift, that is, left shift and right shift operations.
(4) Statistical calculator-a calculator designed for people with statistical needs, which can be software or physical objects.
Extended data
Advanced scientific calculators or engineering calculators support trigonometric functions, statistics and other functions. The most advanced modern calculators can even display graphics and contain computer algebra systems.
This calculator can write programs, including algebraic equation solving programs, economic models and even game programs. This type of calculator can display a numerical value, which fills the whole display screen. And this number can be expressed as 9.99999999 * 10 by scientific notation.
If the user tries to enter an excessively large value or calculate an expression that produces an excessively large value (for example, enter 100! , that is, 100 factorial), the calculator only displays the word error. Because a calculator with such limited memory cannot store such a huge input (about 9.3326215443944 *10157).
Error is also used to represent mathematically undefined functions or operations, such as dividing by zero or taking the square root of a negative number (except some expensive calculators have special functions that can handle complex numbers, most scientific calculators do not allow complex numbers). Some few calculators can tell the difference between these two kinds of errors, although it is still difficult for users to understand the difference between error 1 and error 2.
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