Im (Built-in Mathematica Symbol)

Im[z] gives the imaginary part of the complex number z.

Mean (Built-in Mathematica Symbol)

Mean[list] gives the statistical mean of the elements in list. Mean[dist] gives the mean of the symbolic distribution dist.

NestList (Built-in Mathematica Symbol)

NestList[f, expr, n] gives a list of the results of applying f to expr 0 through n times.

Norm (Built-in Mathematica Symbol)

Norm[expr] gives the norm of a number, vector or matrix. Norm[expr, p] gives the p-norm.

Re (Built-in Mathematica Symbol)

Re[z] gives the real part of the complex number z.

StringSplit (Built-in Mathematica Symbol)

StringSplit["string"] splits " string" into a list of substrings separated by whitespace. StringSplit["string", patt] splits into substrings separated by delimiters matching ...

Rigid Body Solvers (Mathematica Tutorial)

The equations of motion for a free rigid body whose center of mass is at the origin are given by the following Euler equations (see [MR99]). Two quadratic first integrals of ...

Norms in NDSolve (Mathematica Tutorial)

NDSolve uses norms of error estimates to determine when solutions satisfy error tolerances. In nearly all cases the norm has been weighted, or scaled, such that it is less ...

Newton's Method (Mathematica Tutorial)

One significant advantage Mathematica provides is that it can symbolically compute derivatives. This means that when you specify Method->"Newton" and the function is ...

Method (Built-in Mathematica Symbol)

Method is an option for various algorithm-intensive functions that specifies what internal methods they should use.