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  2. Motion graphs and derivatives - Wikipedia

    en.wikipedia.org/wiki/Motion_graphs_and_derivatives

    The green line shows the slope of the velocity-time graph at the particular point where the two lines touch. Its slope is the acceleration at that point. Its slope is the acceleration at that point. In mechanics , the derivative of the position vs. time graph of an object is equal to the velocity of the object.

  3. Rank abundance curve - Wikipedia

    en.wikipedia.org/wiki/Rank_abundance_curve

    The rank abundance curve visually depicts both species richness and species evenness. Species richness can be viewed as the number of different species on the chart i.e., how many species were ranked. Species evenness is reflected in the slope of the line that fits the graph (assuming a linear, i.e. logarithmic series, relationship).

  4. Skew - Wikipedia

    en.wikipedia.org/wiki/Skew

    Skew lines, neither parallel nor intersecting.; Skew normal distribution, a probability distribution; Skew field or division ring; Skew-Hermitian matrix; Skew lattice; Skew polygon, whose vertices do not lie on a plane

  5. Species–area relationship - Wikipedia

    en.wikipedia.org/wiki/Species–area_relationship

    Ecologists have proposed a wide range of factors determining the slope and elevation of the species–area relationship. [2] These factors include the relative balance between immigration and extinction, [ 3 ] rate and magnitude of disturbance on small vs. large areas, [ 3 ] predator-prey dynamics, [ 4 ] and clustering of individuals of the ...

  6. Inflection point - Wikipedia

    en.wikipedia.org/wiki/Inflection_point

    An example of a stationary point of inflection is the point (0, 0) on the graph of y = x 3. The tangent is the x-axis, which cuts the graph at this point. An example of a non-stationary point of inflection is the point (0, 0) on the graph of y = x 3 + ax, for any nonzero a. The tangent at the origin is the line y = ax, which cuts the graph at ...

  7. Exponential growth - Wikipedia

    en.wikipedia.org/wiki/Exponential_growth

    Many pairs (b, τ) of a dimensionless non-negative number b and an amount of time τ (a physical quantity which can be expressed as the product of a number of units and a unit of time) represent the same growth rate, with τ proportional to log b. For any fixed b not equal to 1 (e.g. e or 2), the growth rate is given by the non-zero time τ.

  8. Growth curve (biology) - Wikipedia

    en.wikipedia.org/wiki/Growth_curve_(biology)

    Figure 1: A bi-phasic bacterial growth curve.. A growth curve is an empirical model of the evolution of a quantity over time. Growth curves are widely used in biology for quantities such as population size or biomass (in population ecology and demography, for population growth analysis), individual body height or biomass (in physiology, for growth analysis of individuals).

  9. Normal backwardation - Wikipedia

    en.wikipedia.org/wiki/Normal_backwardation

    The graph depicts how the price of a single forward contract will behave through time in relation to the expected future price. A contract in backwardation will increase in value until it equals the spot price of the underlying at maturity. Note that this graph does not show the forward curve (which plots against maturities on the horizontal).