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  2. Lossless compression - Wikipedia

    en.wikipedia.org/wiki/Lossless_compression

    In fact, if we consider files of length N, if all files were equally probable, then for any lossless compression that reduces the size of some file, the expected length of a compressed file (averaged over all possible files of length N) must necessarily be greater than N. [citation needed] So if we know nothing about the properties of the data ...

  3. Tax return - Wikipedia

    en.wikipedia.org/wiki/Tax_return

    A person or organization may not be required to file a tax return depending on circumstances, which are different in each country. Generally, a tax return does not need to be filed if income is less than a certain amount, but other factors such as the type of income, age, and filing status also play a role.

  4. Data compression - Wikipedia

    en.wikipedia.org/wiki/Data_compression

    When audio files are to be processed, either by further compression or for editing, it is desirable to work from an unchanged original (uncompressed or losslessly compressed). Processing of a lossily compressed file for some purpose usually produces a final result inferior to the creation of the same compressed file from an uncompressed original.

  5. International Terrestrial Reference System and Frame

    en.wikipedia.org/wiki/International_Terrestrial...

    The difference between the latest as of 2006 WGS 84 (frame realisation G1150) and the latest ITRF2000 is only a few centimeters and RMS difference of one centimeter per component. [1] The ITRS and ITRF solutions are maintained by the International Earth Rotation and Reference Systems Service . Practical navigation systems are in general ...

  6. bzip2 - Wikipedia

    en.wikipedia.org/wiki/Bzip2

    bzip2 is a free and open-source file compression program that uses the Burrows–Wheeler algorithm.It only compresses single files and is not a file archiver.It relies on separate external utilities such as tar for tasks such as handling multiple files, and other tools for encryption, and archive splitting.

  7. Income tax return (India) - Wikipedia

    en.wikipedia.org/wiki/Income_tax_return_(India)

    Income tax return is the form in which assesses file information about his/her income and tax thereon to Income Tax Department. Various forms are ITR 1, ITR 2, ITR 3, ITR 4, ITR 5, ITR 6 and ITR 7. When you file a belated return, you are not allowed to carry forward certain losses. [1]

  8. Income Tax Department - Wikipedia

    en.wikipedia.org/wiki/Income_Tax_Department

    When the Income Tax Department requires clarifications from the taxpayer on certain issues for a better assessment of the income of the taxpayer or requiring the taxpayer to file a return of income if he has not filed one already, a notice under sub-section (1) of section 142 is issued to the taxpayer.

  9. Income tax - Wikipedia

    en.wikipedia.org/wiki/Income_tax

    For profits that are earned by selling assets or a real estate (capital gains), the income tax varies between countries, and is different from for any other types of income. Rental income may also sometimes be subject to income tax, but many countries offer deductions or even exemptions for this type of income.