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  2. List of character tables for chemically important 3D point ...

    en.wikipedia.org/wiki/List_of_character_tables...

    The body of the tables contain the characters in the respective irreducible representations for each respective symmetry operation, or set of symmetry operations. The symbol i used in the body of the table denotes the imaginary unit: i 2 = −1. Used in a column heading, it denotes the operation of inversion.

  3. Molecular symmetry - Wikipedia

    en.wikipedia.org/wiki/Molecular_symmetry

    Robert Mulliken was the first to publish character tables in English (1933), and E. Bright Wilson used them in 1934 to predict the symmetry of vibrational normal modes. [13]. For this reason, the notation used to label irreps in the above table is called Mulliken notation and for asymmetric groups it consists of letters A and B with subscripts ...

  4. Character table - Wikipedia

    en.wikipedia.org/wiki/Character_table

    The irreducible complex characters of a finite group form a character table which encodes much useful information about the group G in a concise form. Each row is labelled by an irreducible character and the entries in the row are the values of that character on any representative of the respective conjugacy class of G (because characters are class functions).

  5. Comparison of computer-aided design software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_computer...

    The table below provides an overview of notable computer-aided design (CAD) software. It does not judge power, ease of use, or other user-experience aspects. The table does not include software that is still in development (beta software). For all-purpose 3D programs, see Comparison of 3D computer graphics software.

  6. AutoCAD DXF - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_DXF

    AutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a computer-aided design (CAD) data file format developed by Autodesk [2] to enable CAD data exchange and interoperability between AutoCAD on different computing platforms.

  7. AutoCAD version history - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_version_history

    AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program. The file contents starts with this string. The file format version code (tag) is dependent on the AutoCAD version. [2]

  8. C2H - Wikipedia

    en.wikipedia.org/wiki/C2H

    Toggle the table of contents. C2H. Add languages. Add links ... Download as PDF; Printable version ... move to sidebar hide. C2H or C 2 H may refer to : Science ...

  9. Category:Character set table templates - Wikipedia

    en.wikipedia.org/wiki/Category:Character_set...

    [[Category:Character set table templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Character set table templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.