There are some close connections between finding a "local minimum" and solving a set of nonlinear equations. Given a set of n equations in n unknowns, seeking a solution r(x) ...

SQLSavepoint[...] is an object that represents a savepoint in an SQL transaction.

FrontEndSharedQ[link] returns True if the front end is being shared with a specified link, and returns False otherwise.

GetClass[javaobject] returns the JavaClass that identifies the object's class.

JavaObjectQ[expr] gives True if expr is a reference to a Java object or Null, and gives False otherwise.

MakeJavaExpr[expr] constructs a new Java object of the J/Link Expr class that represents the Mathematica expression expr.

Periodical[id] returns information about the periodical task corresponding to the specified integer id.

Periodicals[] returns a list of integer ID numbers corresponding to the set of operations that are periodically performed automatically when the kernel is not busy with ...

ReinstallJava[] is a convenience function that calls UninstallJava followed by InstallJava.

RemovePeriodical[id] removes the computation corresponding to the integer id from the set of operations that are periodically performed automatically.