Factorial2 (Built-in Mathematica Symbol)

n!! gives the double factorial of n.

InterpolatingFunction (Built-in Mathematica Symbol)

InterpolatingFunction[domain, table] represents an approximate function whose values are found by interpolation.

Likelihood (Built-in Mathematica Symbol)

Likelihood[dist, {x_1, x_2, ...}] gives the likelihood function for observations x_1, x_2, ... from the distribution dist.

LogIntegral (Built-in Mathematica Symbol)

LogIntegral[z] is the logarithmic integral function li(z).

PositiveDefiniteMatrixQ (Built-in Mathematica Symbol)

PositiveDefiniteMatrixQ[m] tests whether m is a positive definite matrix.

Sqrt (Built-in Mathematica Symbol)

Sqrt[z] or Sqrt[z] gives the square root of z.

StreamScale (Built-in Mathematica Symbol)

StreamScale is an option to StreamPlot, ListStreamPlot, and related functions that determines the length and arrowhead size of streamlines that are drawn.

Tooltip (Built-in Mathematica Symbol)

Tooltip[expr, label] displays label as a tooltip while the mouse pointer is in the area where expr is displayed.

VectorAngle (Built-in Mathematica Symbol)

VectorAngle[u, v] gives the angle between the vectors u and v.

Numerical Nonlinear Global Optimization (Mathematica Tutorial)

Numerical algorithms for constrained nonlinear optimization can be broadly categorized into gradient-based methods and direct search methods. Gradient-based methods use first ...