CellDynamicExpression is an option for cells that specifies an expression to be dynamically updated whenever the cell is visible on-screen.
ColorNegate[image] gives the negative of image, in which all colors have been negated.
ColorSpace is an option for Image and related functions that specifies the color space to which color values refer.
ContinuousTimeModelQ[expr] gives True if expr is a continuous-time StateSpaceModel or TransferFunctionModel object, and False otherwise.
ConwayGroupCo1[] represents the sporadic simple Conway group Co_1.
ConwayGroupCo2[] represents the sporadic simple Conway group Co_2.
DiscreteTimeModelQ[expr] gives True if expr is a discrete-time StateSpaceModel or TransferFunctionModel object and False otherwise.
EvaluationElements is an option for NotebookEvaluate that determines which cells to evaluate.
ExcludePods is an option to WolframAlpha that specifies pod IDs to exclude from the results.
FeedbackType is an option for some control system functions that specifies the feedback type.