NHoldRest is an attribute which specifies that all but the first argument to a function should not be affected by N.
ObservableModelQ[ss] gives True if the StateSpaceModel object ss is observable, and False otherwise.
OpenWrite["file"] opens a file to write output to it, and returns an OutputStream object. OpenWrite[] opens a new file in the default area for temporary files on your ...
PathGraphQ[g] yields True if the graph g is a path and False otherwise.
PowerMod[a, b, m] gives a^b mod m. PowerMod[a, -1, m] finds the modular inverse of a modulo m.PowerMod[a, 1/r, m] finds a modular r\[Null]^th root of a.
Regularization is an option for Sum and Product that specifies what type of regularization to use.
p .. or Repeated[p] is a pattern object that represents a sequence of one or more expressions, each matching p. Repeated[p, max] represents up to max expressions matching ...
RuntimeAttributes is an option for Compile that specifies attributes for the compiled function it creates.
SymmetricMatrixQ[m] tests whether m is a symmetric matrix.
ToExpression[input] gives the expression obtained by interpreting strings or boxes as Mathematica input. ToExpression[input, form] uses interpretation rules corresponding to ...