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A spreadsheet's concatenate ("&") function is used to assemble a complex text string—in this example, XML code for an SVG "circle" element. In formal language theory and computer programming, string concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball".
In the C programming language the comma symbol is an operator which evaluates its first argument (which may have side-effects) and then returns the value of its evaluated second argument. This is useful in for statements and macros. In Smalltalk and APL, the comma operator is used to concatenate collections, including strings.
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
Combining Diacritical Marks is a Unicode block containing the most common combining characters.It also contains the character "Combining Grapheme Joiner", which prevents canonical reordering of combining characters, and despite the name, actually separates characters that would otherwise be considered a single grapheme in a given context.
Also note the keyboard had some 55 unique (68 listed per tables above, including comparative symbols but several symbols appear in both monadic and dyadic tables) APL symbol keys (55 APL functions (operators) are listed in IBM's 5110 APL Reference Manual), thus with the use of alt, shift and ctrl keys - it would theoretically have allowed a ...
BAMUM COMMA U+A6F5: Po, other Bamum ꛶ BAMUM SEMICOLON U+A6F6: Po, other Bamum ꛷ BAMUM QUESTION MARK U+A6F7: Po, other Bamum 櫵 BASSA VAH FULL STOP U+16AF5: Po, other Bassa Vah ᯼ BATAK SYMBOL BINDU NA METEK U+1BFC: Po, other Batak ᯽ BATAK SYMBOL BINDU PINARBORAS U+1BFD: Po, other Batak ᯾ BATAK SYMBOL BINDU JUDUL U+1BFE: Po, other ...
The question comma has a comma instead of the dot at the bottom of a question mark, while the exclamation comma has a comma in place of the point at the bottom of an exclamation mark. These were intended for use as question and exclamation marks within a sentence, a function for which normal question and exclamation marks can also be used, but ...
In the specific Gödel numbering used by Nagel and Newman, the Gödel number for the symbol "0" is 6 and the Gödel number for the symbol "=" is 5. Thus, in their system, the Gödel number of the formula "0 = 0" is 2 6 × 3 5 × 5 6 = 243,000,000.