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  2. TestDisk - Wikipedia

    en.wikipedia.org/wiki/TestDisk

    TestDisk can recover deleted files especially if the file was not fragmented and the clusters have not been reused. There are two file recovery mechanisms in the TestDisk package: [2] TestDisk proper uses knowledge of the filesystem structure to perform "undelete". PhotoRec is a "file carver". It does not need any knowledge of the file system ...

  3. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    <math display= "block" > \sum_{i=0}^\infty 2^{-i} </math> Technically, the command \displaystyle will be added to the user input (if the user input does not already contain the string \displaystyle or \align) before the TeX command is passed to the renderer. The result will be displayed in a new paragraph.

  4. 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 ...

  5. Formula editor - Wikipedia

    en.wikipedia.org/wiki/Formula_editor

    A typeset mathematical expression. A formula editor is a computer program that is used to typeset mathematical formulas and mathematical expressions.. Formula editors typically serve two purposes:

  6. Help:Conditional expressions - Wikipedia

    en.wikipedia.org/wiki/Help:Conditional_expressions

    The #if function selects one of two alternatives based on the truth value of a test string. {{#if: test string | value if true | value if false}} As explained above, a string is considered true if it contains at least one non-whitespace character. Any string containing only whitespace or no characters at all will be treated as false.

  7. Data Interchange Format - Wikipedia

    en.wikipedia.org/wiki/Data_Interchange_Format

    EOD – end of data; 0 – numeric type, value is the second number, the following line is one of these keywords: V – valid; NA – not available; ERRORerror; TRUE – true boolean value; FALSE – false boolean value; 1 – string type, the second number is ignored, the following line is the string in double quotes

  8. Received A Math Error From The IRS? Here’s What To Do - AOL

    www.aol.com/received-math-error-irs-193304211.html

    If you’ve recently received an error notice from the IRS due to a “math error” — you’re not alone. According to the Taxpayer Advocate, since July 15 there ...

  9. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    2. Denotes the additive inverse and is read as minus, the negative of, or the opposite of; for example, –2. 3. Also used in place of \ for denoting the set-theoretic complement; see \ in § Set theory. × (multiplication sign) 1. In elementary arithmetic, denotes multiplication, and is read as times; for example, 3 × 2. 2.