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  2. Tax Deduction and Collection Account Number - Wikipedia

    en.wikipedia.org/wiki/Tax_Deduction_and...

    A TAN application should accompany a 'proof of identity' and a 'proof of address' (photocopies) of the deductor. In the case of online applications, these documents need to be sent over mail (post/courier) to NSDL - TAN Application division. When NSDL receives the TAN application along with said documents (either through TIN FC / Online), the ...

  3. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  4. Transaction authentication number - Wikipedia

    en.wikipedia.org/wiki/Transaction_authentication...

    The bank verifies the TAN submitted against the list of TANs they issued to the user. If it is a match, the transaction is processed. If it is not a match, the transaction is rejected. The TAN has now been used and will not be recognized for any further transactions. If the TAN list is compromised, the user may cancel it by notifying the bank.

  5. atan2 - Wikipedia

    en.wikipedia.org/wiki/Atan2

    atan2(y, x) returns the angle θ between the positive x-axis and the ray from the origin to the point (x, y), confined to (−π, π].Graph of ⁡ (,) over /. In computing and mathematics, the function atan2 is the 2-argument arctangent.

  6. Power factor - Wikipedia

    en.wikipedia.org/wiki/Power_factor

    Power-factor correction increases the power factor of a load, improving efficiency for the distribution system to which it is attached. Linear loads with a low power factor (such as induction motors ) can be corrected with a passive network of capacitors or inductors .

  7. Small-angle approximation - Wikipedia

    en.wikipedia.org/wiki/Small-angle_approximation

    Using the squeeze theorem, [4] we can prove that ⁡ =, which is a formal restatement of the approximation ⁡ for small values of θ.. A more careful application of the squeeze theorem proves that ⁡ =, from which we conclude that ⁡ for small values of θ.

  8. Inverse trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/Inverse_trigonometric...

    [1] [10] Another precarious convention used by a small number of authors is to use an uppercase first letter, along with a “ −1 ” superscript: Sin −1 (x), Cos −1 (x), Tan −1 (x), etc. [11] Although it is intended to avoid confusion with the reciprocal, which should be represented by sin −1 (x), cos −1 (x), etc., or, better, by ...

  9. Error diffusion - Wikipedia

    en.wikipedia.org/wiki/Error_diffusion

    This has application in displays and printers which can produce 4, 8, or 16 levels in each image plane, such as electrostatic printers and displays in compact mobile telephones. Rather than use a single threshold to produce binary output, the closest permitted level is determined, and the error, if any, is diffused as described above.