Charles (1772-1837): main French utopian socialist (See Chap.IV).

French mathematician who developed Fourier analysis and studied the conduction of heat (1768-1830)

French sociologist and reformer who hoped to achieve universal harmony by reorganizing society (1772-1837)

Fourier is a lunar crater that is located in the southwestern part of the Moon's near side, just to the southeast of Vieta crater. To the northeast is the Mare Humorum. The rim of this crater is roughly circular, but appears oval when viewed from the Earth due to foreshortening.

Fourier is a portable image processing and analysis library written in ANSI C. It implements image operations such as colorspace conversions, noise removal, smoothing, enhancement, edge detection, thresholding, segmentation, and visual feature extraction