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Geometry and Topology

Infinite-dimensional spaces are widely used in geometry and topology, particularly as classifying spaces, such as Eilenberg−MacLane spaces. Common examples are the infinite-dimensional complex projective space K(Z,2) and the infinite-dimensional real projective space

    quantity

    These physical or physiological quantifications of color, however, do not fully explain the psychophysical perception of color appearance.

    source

    Most light sources emit light at many different wavelengths; a source’s spectrum is a distribution giving its intensity at each wavelength.

    brain

    The color of an object depends on both the physics of the object in its environment and the characteristics of the perceiving eye and brain.

    Nature of Description

    Description is one of four rhetorical modes, along with exposition, argumentation, and narration. Each of the rhetorical modes is present in a variety of forms and each has its own purpose and conventions. The act of description may be related to that of definition.

    Description is also the fiction-writing mode for transmitting a mental image of the particulars of a story.

    The pattern of development that presents a word picture of a thing, a person, a situation, or a series of events.

    The most appropriate and effective techniques for presenting description are a matter of ongoing discussion among writers and writing coaches.