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On a single-step or immediate-execution calculator, the user presses a key for each operation, calculating all the intermediate results, before the final value is shown. [1] [2] [3] On an expression or formula calculator, one types in an expression and then presses a key, such as "=" or "Enter", to evaluate the expression.
The formula calculator concept can be applied to all types of calculator, including arithmetic, scientific, statistics, financial and conversion calculators. The calculation can be typed or pasted into an edit box of: A software package that runs on a computer, for example as a dialog box. An on-line formula calculator hosted on a web site.
However, the expressions can be basic calculations that do not use variables, and that are simply evaluated, as with a calculator. Databases Databases are not normally called calculators because their main purpose is data entry and storage, plus reporting against this data. The calculation features are only used in a supporting role to specify ...
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They may also be performed, in a similar way, on variables, algebraic expressions, [2] and more generally, on elements of algebraic structures, such as groups and fields. [3] An algebraic operation may also be defined more generally as a function from a Cartesian power of a given set to the same set. [4]
When the user is unsure how a calculator will interpret an expression, parentheses can be used to remove the ambiguity. [ 3 ] Order of operations arose due to the adaptation of infix notation in standard mathematical notation , which can be notationally ambiguous without such conventions, as opposed to postfix notation or prefix notation ...
Video: Keys pressed for calculating eight times six on a HP-32SII (employing RPN) from 1991. Reverse Polish notation (RPN), also known as reverse Łukasiewicz notation, Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands, in contrast to prefix or Polish notation (PN), in which operators precede their operands.
cov – covariance of a pair of random variables. cover – coversine function. (Also written as covers, cvs, cosiv.) covercos – covercosine function. (Also written as cvc.) covers – coversine function. (Also written as cover, cvs, cosiv.) crd – chord function. CRT – Chinese remainder theorem. csc – cosecant function. (Also written as ...