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  2. C string handling - Wikipedia

    en.wikipedia.org/wiki/C_string_handling

    Part of the C standard since C23, in <uchar.h>, a type that is suitable for storing UTF-8 characters. [12] char16_t [13] Part of the C standard since C11, [14] in <uchar.h>, a type capable of holding 16 bits even if wchar_t is another size. If the macro __STDC_UTF_16__ is defined as 1, the type is used for UTF-16 on that system.

  3. Escape sequences in C - Wikipedia

    en.wikipedia.org/wiki/Escape_sequences_in_C

    They have the form \uhhhh or \Uhhhhhhhh, where h stands for a hex digit. Unlike other escape sequences, a universal character name may expand into more than one code unit. The sequence \uhhhh denotes the code point hhhh, interpreted as a hexadecimal number. The sequence \Uhhhhhhhh denotes the code point hhhhhhhh, interpreted as a hexadecimal ...

  4. d'Alembert's formula - Wikipedia

    en.wikipedia.org/wiki/D'Alembert's_formula

    Details [ edit ] The characteristics of the PDE are x ± c t = c o n s t {\displaystyle x\pm ct=\mathrm {const} } (where ± {\displaystyle \pm } sign states the two solutions to quadratic equation), so we can use the change of variables μ = x + c t {\displaystyle \mu =x+ct} (for the positive solution) and η = x − c t {\displaystyle \eta =x ...

  5. Comparison of programming languages (string functions)

    en.wikipedia.org/wiki/Comparison_of_programming...

    For function that manipulate strings, modern object-oriented languages, like C# and Java have immutable strings and return a copy (in newly allocated dynamic memory), while others, like C manipulate the original string unless the programmer copies data to a new string.

  6. Genetic code - Wikipedia

    en.wikipedia.org/wiki/Genetic_code

    The genetic code is so well-structured for hydropathicity that a mathematical analysis (Singular Value Decomposition) of 12 variables (4 nucleotides x 3 positions) yields a remarkable correlation (C = 0.95) for predicting the hydropathicity of the encoded amino acid directly from the triplet nucleotide sequence, without translation.

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  8. String operations - Wikipedia

    en.wikipedia.org/wiki/String_operations

    For the latter language, g uc (g uc −1 ({ ‹A›, ‹bb› })) = g uc ({ ‹a› }) = { ‹A› } ≠ { ‹A›, ‹bb› }. The homomorphism g uc is not ε-free, since it maps e.g. ‹0› to ε. A very simple string homomorphism example that maps each character to just a character is the conversion of an EBCDIC-encoded string to ASCII.

  9. AOL Mail - AOL Help

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.