ContentSelectable is an option to constructs such as Inset, Graphics, and GraphicsGroup that specifies whether and how content within them should be selectable.

ContentSize is an option for Manipulate and other functions that specifies the size of the content area to use.

Contexts[] gives a list of all contexts. Contexts["string"] gives a list of the contexts that match the string.

ContextToFileName["context"] gives the string specifying the file name that is by convention associated with a particular context.

ContinuedFraction[x, n] generates a list of the first n terms in the continued fraction representation of x. ContinuedFraction[x] generates a list of all terms that can be ...

ContinuousAction is an option for Manipulate, Slider, and related functions that specifies whether action should be taken continuously while controls are being moved.

ContinuousWaveletData[{{oct_1, voc_1} -> coef_1, ...}, wave] yields a continuous wavelet data object with wavelet coefficients coef_i corresponding to octave and voice ...

ContourDetect[image] gives a binary image in which white pixels correspond to the zeros and zero crossings in image.ContourDetect[image, delta] treats values in image that ...

ContourLabels is an option for contour plots that specifies how to label contours.

As of Version 6.0, ContourLines has been superseded by settings for ContourStyle.