FromCoefficientRules[list, {x_1, x_2, ...}] constructs a polynomial from a list of rules for exponent vectors and coefficients.
$AssertFunction specifies a function to apply to assertions that fail.
$SharedFunctions is the list of functions currently being shared among parallel kernels.
$SharedVariables is the list of variables currently being shared among parallel kernels.
ImageAspectRatio[image] gives the ratio of height to width for image.
ImageColorSpace[image] gives the name of the color space of image.
Notebooks as Documents Entering Input in Notebooks Two–Dimensional Expression Input
Placeholder[name] represents a placeholder labeled with name that indicates a place to type.Placeholder[] gives the empty placeholder \[Placeholder].
SystemOpen["target"] opens the specified file, URL, or other target with the associated program on your computer system.
ActiveStyle is an option for Hyperlink and related constructs that specifies styles to add when the constructs are active, typically as a result of the mouse being over them.