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  2. Sigmoid function - Wikipedia

    en.wikipedia.org/wiki/Sigmoid_function

    Sigmoid functions have domain of all real numbers, with return (response) value commonly monotonically increasing but could be decreasing. Sigmoid functions most often show a return value (y axis) in the range 0 to 1. Another commonly used range is from −1 to 1.

  3. Poincaré plot - Wikipedia

    en.wikipedia.org/wiki/Poincaré_plot

    A Poincaré plot, named after Henri Poincaré, is a graphical representation used to visualize the relationship between consecutive data points in time series to detect patterns and irregularities in the time series, revealing information about the stability of dynamical systems, providing insights into periodic orbits, chaotic motions, and ...

  4. Return statement - Wikipedia

    en.wikipedia.org/wiki/Return_statement

    The return value from a function is provided within the function by making an assignment to an identifier with the same name as the function. [5] However, some versions of Pascal provide a special function Exit(exp); that can be used to return a value immediately from a function, or, without parameters, to return immediately from a procedure. [6]

  5. Rosenbrock function - Wikipedia

    en.wikipedia.org/wiki/Rosenbrock_function

    Plot of the Rosenbrock function of two variables. Here a = 1 , b = 100 {\displaystyle a=1,b=100} , and the minimum value of zero is at ( 1 , 1 ) {\displaystyle (1,1)} . In mathematical optimization , the Rosenbrock function is a non- convex function , introduced by Howard H. Rosenbrock in 1960, which is used as a performance test problem for ...

  6. Lambert W function - Wikipedia

    en.wikipedia.org/wiki/Lambert_W_function

    The product logarithm Lambert W function plotted in the complex plane from −2 − 2i to 2 + 2i The graph of y = W(x) for real x < 6 and y > −4.The upper branch (blue) with y ≥ −1 is the graph of the function W 0 (principal branch), the lower branch (magenta) with y ≤ −1 is the graph of the function W −1.

  7. Lorenz 96 model - Wikipedia

    en.wikipedia.org/wiki/Lorenz_96_model

    using DynamicalSystems, PyPlot PyPlot. using3D # parameters and initial conditions N = 5 F = 8.0 u₀ = F * ones (N) u₀ [1] += 0.01 # small perturbation # The Lorenz-96 model is predefined in DynamicalSystems.jl: ds = Systems. lorenz96 (N; F = F) # Equivalently, to define a fast version explicitly, do: struct Lorenz96 {N} end # Structure for size type function (obj:: Lorenz96 {N})(dx, x, p ...

  8. Floor and ceiling functions - Wikipedia

    en.wikipedia.org/wiki/Floor_and_ceiling_functions

    In mathematics, the floor function is the function that takes as input a real number x, and gives as output the greatest integer less than or equal to x, denoted ⌊x⌋ or floor(x). Similarly, the ceiling function maps x to the least integer greater than or equal to x, denoted ⌈x⌉ or ceil(x). [1]

  9. Call graph - Wikipedia

    en.wikipedia.org/wiki/Call_graph

    rcviz : Python module for rendering runtime-generated call graphs with Graphviz. Each node represents an invocation of a function with the parameters passed to it and the return value. XQuery. XQuery Call Graphs from the XQuery Wikibook: A call graph generator for an XQuery function module that uses Graphviz