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  2. Transmission voie-machine - Wikipedia

    en.wikipedia.org/wiki/Transmission_Voie-Machine

    Two versions of TVM signalling, TVM-430 and TVM-300, are in use on the LGV. TVM-430, a newer system, was first installed on the LGV Nord to the Channel Tunnel and Belgium, and supplies trains with more information than TVM-300. Amongst other benefits, TVM-430 allows a train's onboard computer system to generate a continuous speed control curve ...

  3. Time value of money - Wikipedia

    en.wikipedia.org/wiki/Time_value_of_money

    The present value formula is the core formula for the time value of money; each of the other formulas is derived from this formula. For example, the annuity formula is the sum of a series of present value calculations. The present value (PV) formula has four variables, each of which can be solved for by numerical methods:

  4. List of electromagnetism equations - Wikipedia

    en.wikipedia.org/wiki/List_of_electromagnetism...

    Continuous charge distribution. The volume charge density ρ is the amount of charge per unit volume (cube), surface charge density σ is amount per unit surface area (circle) with outward unit normal nĚ‚, d is the dipole moment between two point charges, the volume density of these is the polarization density P.

  5. Track-via-missile - Wikipedia

    en.wikipedia.org/wiki/Track-via-missile

    Track-via-missile or TVM refers to a missile guidance technique which combines features of semi-active radar homing (SARH) and radio command guidance.This avoids the problems with terminal accuracy normally seen by command guided missiles, especially at long range.

  6. List of theorems - Wikipedia

    en.wikipedia.org/wiki/List_of_theorems

    Cauchy-Binet formula (linear algebra) Cauchy–Hadamard theorem (complex analysis) ... Fundamental theorem of arbitrage-free pricing (financial mathematics)

  7. What is compound interest? How compounding works to turn time ...

    www.aol.com/finance/what-is-compound-interest...

    Here’s what the letters represent: A is the amount of money in your account. P is your principal balance you invested. R is the annual interest rate expressed as a decimal. N is the number of ...

  8. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    Spaces within a formula must be directly managed (for example by including explicit hair or thin spaces). Variable names must be italicized explicitly, and superscripts and subscripts must use an explicit tag or template. Except for short formulas, the source of a formula typically has more markup overhead and can be difficult to read.

  9. List of physics mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_physics_mnemonics

    A Magic Triangle image mnemonic - when the terms of Ohm's law are arranged in this configuration, covering the unknown gives the formula in terms of the remaining parameters. It can be adapted to similar equations e.g. F = ma , v = fλ , E = mcΔT , V = π r 2 h and τ = rF sin θ .