Thus, it supports almost everything needed like macros, loops control, lists, string and arithmetic expressions, and avoids to the maximum the intervention of the user.
12.
Hash functions used for data searches use some arithmetic expression which iteratively processes chunks of the input ( such as the characters in a string ) to produce the hash value.
13.
This notation is interpreted as an array access when it occurs in an arithmetic expression, a constraint, or as an argument of a call to @ = / 2.
14.
Monospaced fonts are commonly used by computer programmers for displaying and editing source code so that certain characters ( for example parentheses used to group arithmetic expressions ) are easy to see.
15.
Language designers often express grammars in a syntax such as Backus-Naur form; here is such a grammar, for a simple language of arithmetic expressions with multiplication and addition:
16.
Here, a program is converted into a complex state diagram in which states and arcs may include arithmetic expressions, and those expressions may use external inputs and outputs as well as variables.
17.
Chomsky terminology was not originally used in describing BNF . Naur later described them as classes in ALGOL course materials . describes BNF as a metalanguage for talking about ALGOL . An example of its use as a metalanguage would be in defining an arithmetic expression:
18.
This is expressed in the virtual machine for Perl 6, GCC's C and C + + parsers, which are hand-coded recursive descent parsers, are both speed up by an operator-precedence parser that can quickly examine arithmetic expressions.
19.
By recursively referring to expressions in the second and third lines, the grammar permits arbitrarily complex arithmetic expressions such as ( 5 * ( ( 3 * 6 ) + 8 ) ), with more than one product or sum operation in a single expression.
20.
In one case of a three-way conditional provided by the programming language, Fortran's now-deprecated three-way arithmetic IF statement considers the sign of an arithmetic expression and offers three labels to jump to according to the sign of the result:
