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  2. Positional notation - Wikipedia

    en.wikipedia.org/wiki/Positional_notation

    In the decimal (base-10) Hindu–Arabic numeral system, each position starting from the right is a higher power of 10. The first position represents 10 0 (1), the second position 10 1 (10), the third position 10 2 (10 × 10 or 100), the fourth position 10 3 (10 × 10 × 10 or 1000), and so on.

  3. Absolute value - Wikipedia

    en.wikipedia.org/wiki/Absolute_value

    The real absolute value function is an example of a continuous function that achieves a global minimum where the derivative does not exist. The subdifferential of | x | at x = 0 is the interval [−1, 1]. [18] The complex absolute value function is continuous everywhere but complex differentiable nowhere because it violates the Cauchy–Riemann ...

  4. Abscissa and ordinate - Wikipedia

    en.wikipedia.org/wiki/Abscissa_and_ordinate

    More technically, the abscissa of a point is the signed measure of its projection on the primary axis. Its absolute value is the distance between the projection and the origin of the axis, and its sign is given by the location on the projection relative to the origin (before: negative; after: positive). Similarly, the ordinate of a point is the ...

  5. Volatility smile - Wikipedia

    en.wikipedia.org/wiki/Volatility_smile

    "sticky strike" (or "sticky-by-strike", or "stick-to-strike"): if spot changes, the implied volatility of an option with a given absolute strike does not change. "sticky moneyness" (aka, "sticky delta"; see moneyness for why these are equivalent terms): if spot changes, the implied volatility of an option with a given moneyness (delta) does not ...

  6. Position (geometry) - Wikipedia

    en.wikipedia.org/wiki/Position_(geometry)

    In geometry, a position or position vector, also known as location vector or radius vector, is a Euclidean vector that represents a point P in space. Its length represents the distance in relation to an arbitrary reference origin O , and its direction represents the angular orientation with respect to given reference axes.

  7. Uncertainty principle - Wikipedia

    en.wikipedia.org/wiki/Uncertainty_principle

    where = is the reduced Planck constant.. The quintessentially quantum mechanical uncertainty principle comes in many forms other than position–momentum. The energy–time relationship is widely used to relate quantum state lifetime to measured energy widths but its formal derivation is fraught with confusing issues about the nature of time.

  8. Encoder (position) - Wikipedia

    en.wikipedia.org/wiki/Encoder_(position)

    Absolute encoders give an absolute position value. Incremental encoders count movement rather than position. With detection of a datum position and the use of a counter, an absolute position may be derived. The position may be measured as either linear or angular position Linear encoder, converts linear position to an electronic signal

  9. Moneyness - Wikipedia

    en.wikipedia.org/wiki/Moneyness

    The intrinsic value (or "monetary value") of an option is its value assuming it were exercised immediately. Thus if the current price of the underlying security (or commodity etc.) is above the agreed price, a call has positive intrinsic value (and is called "in the money"), while a put has zero intrinsic value (and is "out of the money").