New functions SymmetricPolynomial and SymmetricReduction have been added to the built-in Mathematica kernel.

Miscellaneous`WorldPlot` functionality is now available in the newly created World Plotting Package. Many enhancements are available through the built-in Mathematica kernel ...

Mathematica has immedate built-in access to extensive scientific and technical data—all carefully curated and updated at Wolfram Research.

BoundaryStyle is an option for plotting functions that specifies the style in which boundaries of regions should be drawn.

CoordinatesToolOptions is an option for Graphics that gives values of options associated with the Get Coordinates tool.

DependentVariables is an option which specifies the list of all objects that should be considered as dependent variables in equations that have been supplied.

SatisfiableQ[bf] gives True if a combination of values of variables exists that makes the Boolean function bf yield True.SatisfiableQ[expr, {a_1, a_2, ...}] gives True if a ...

TraceOff is an option for Trace and related functions which specifies forms inside which tracing should be switched off.

Converting power series to normal expressions. Power series in Mathematica are represented in a special internal form, which keeps track of such attributes as their expansion ...

Solving equations involving power series. Here is a power series. This gives an equation involving the power series.