PositiveDefiniteMatrixQ (Built-in Mathematica Symbol)

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

Sign (Built-in Mathematica Symbol)

Sign[x] gives -1, 0, or 1 depending on whether x is negative, zero, or positive.

HighlightGraph (Built-in Mathematica Symbol)

HighlightGraph[g, {a_1, a_2, ...}] highlights the a_i that can be vertices, edges, or subgraphs of g.HighlightGraph[g, {..., w_j[a_j], ...}] highlights using the symbolic ...

VertexCount (Built-in Mathematica Symbol)

VertexCount[g] gives a count of the number of vertices in the graph g.VertexCount[g, patt] gives a count of the number of vertices that match the pattern patt.

Sin (Built-in Mathematica Symbol)

Sin[z] gives the sine of z.

Numerical Solution of Partial ... (Mathematica Tutorial)

The numerical method of lines is a technique for solving partial differential equations by discretizing in all but one dimension, and then integrating the semi-discrete ...

Statistical Data Analysis (Mathematica Guide)

Mathematica integrates many aspects of statistical data analysis, from getting and exploring data to building high-quality models and and deducing consequences. Mathematica ...

IDA Method for NDSolve (Mathematica Tutorial)

The IDA package is part of the SUNDIALS (SUite of Nonlinear and DIfferential/ALgebraic equation Solvers) developed at the Center for Applied Scientific Computing of Lawrence ...

VertexQ (Built-in Mathematica Symbol)

VertexQ[g, v] yields True if v is a vertex in the graph g and False otherwise.

EdgeCount (Built-in Mathematica Symbol)

EdgeCount[g] gives a count of the number of edges in the graph g.EdgeCount[g, patt] gives a count of the number of edges that match the pattern patt.