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  2. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...

  3. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Excel offers many user interface tweaks over the earliest electronic spreadsheets; however, the essence remains the same as in the original spreadsheet software, VisiCalc: the program displays cells organized in rows and columns, and each cell may contain data or a formula, with relative or absolute references to other cells.

  4. Help:Advanced table formatting - Wikipedia

    en.wikipedia.org/wiki/Help:Advanced_table_formatting

    For example, nested tables (tables inside tables) should be separated into distinct tables when possible. Here is a more advanced example, showing some more options available for making up tables. Users can play with these settings in their own table to see what effect they have.

  5. Help:Sortable tables - Wikipedia

    en.wikipedia.org/wiki/Help:Sortable_tables

    It is easy to use now. It is a template to automatically add row numbers to sortable tables. The row numbers will not be sorted when columns of data are sorted. A possible note to add above a table: Row numbers are static. Other columns are sortable. This allows ranking of any column. See list of articles transcluding {{static row numbers}}.

  6. Help:Table - Wikipedia

    en.wikipedia.org/wiki/Help:Table

    the basic code for a table row; code for color, alignment, and sorting mode; fixed texts such as units; special formats for sorting; In such a case, it can be useful to create a template that produces the syntax for a table row, with the data as parameters. This can have many advantages: easily changing the order of columns, or removing a column

  7. Database index - Wikipedia

    en.wikipedia.org/wiki/Database_index

    Indexes are useful for many applications but come with some limitations. Consider the following SQL statement: SELECT first_name FROM people WHERE last_name = 'Smith';. To process this statement without an index the database software must look at the last_name column on every row in the table (this is known as a full table scan).

  8. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    If you just want one table from a long Excel page, you can select that table from the Calc page. Then copy the table to a new page in Calc. Edit and move columns and rows in Calc. To drag a column first select it by clicking its header number. Then press and hold the ALT key. Then click a data cell, and drag the column to a new location.

  9. Contingency table - Wikipedia

    en.wikipedia.org/wiki/Contingency_table

    k being the number of rows or the number of columns, whichever is less. C suffers from the disadvantage that it does not reach a maximum of 1.0, notably the highest it can reach in a 2 × 2 table is 0.707 . It can reach values closer to 1.0 in contingency tables with more categories; for example, it can reach a maximum of 0.870 in a 4 × 4 table.

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