Span

Span may refer to:

Science, technology and engineering

Mathematics

Computing

Johan Baptist Spanoghe

Johan Baptist Spanoghe (1798, Madras – 22 April 1838, Pekalongan, Java) was a Dutch botanical collector of Belgian parentage.

A native of Madras, then part of British India, in 1816 he became a civil servant with the Dutch East Indies government. In 1821 he was named as an "assistant resident" for the southern divisions of the Bantam Residency in western Java. From 1831 to 1836, he was stationed on the island of Timor.

As a botanist in the East Indies, he collected plants in Java, Timor and neighboring islands, and also in Bali. The genus Spanoghea was named in his honor by Carl Ludwig Blume, who for a period of time, worked closely with Spanoghe in Java.

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Linear span

In the mathematical subfield of linear algebra or more generally functional analysis, the linear span (also called the linear hull or just span) of a set of vectors in a vector space is the intersection of all subspaces containing that set. The linear span of a set of vectors is therefore a vector space.

Definition

Given a vector space V over a field K, the span of a set S of vectors (not necessarily finite) is defined to be the intersection W of all subspaces of V that contain S. W is referred to as the subspace spanned by S, or by the vectors in S. Conversely, S is called a spanning set of W, and we say that S spans W.

Alternatively, the span of S may be defined as the set of all finite linear combinations of elements of S, which follows from the above definition.

In particular, if S is a finite subset of V, then the span of S is the set of all linear combinations of the elements of S. In the case of infinite S, infinite linear combinations (i.e. where a combination may involve an infinite sum, assuming such sums are defined somehow, e.g. if V is a Banach space) are excluded by the definition; a generalization that allows these is not equivalent.

Room (Chinese constellation)

The Room mansion (房宿, pinyin: Fáng Xiù) is one of the Twenty-eight mansions of the Chinese constellations. It is one of the eastern mansions of the Azure Dragon.

Asterisms

Room (2005 film)

Room is a 2005 independent drama film written and directed by Kyle Henry and starring Cyndi Williams. An overworked, middle-aged Texas woman embezzles from her employer and abandons her family to seek out a mysterious room that has been appearing to her in visions during seizure-like attacks.

Reception

The film currently holds an approval rating of 69% on Rotten Tomatoes.

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Room (magazine)

Room (formerly Room of One's Own) is a Canadian quarterly literary journal that features the work of emerging and established women and genderqueer writers and artists. Launched in Vancouver in 1975 by the West Coast Feminist Literary Magazine Society, or the Growing Room Collective, the journal has published an estimated 3,000 women, serving as an important launching pad for emerging writers. Currently, Room publishes short fiction, creative non-fiction, poetry, art, feature interviews, and features that promote dialogue between readers, writers and the collective, including "Roommate" (a profile of a Room reader or collective member) and "The Back Room" (back page interviews on feminist topics of interest). Collective members are regular participants in literary and arts festivals in Greater Vancouver and Toronto.

History

The journal's original title (1975-2006) Room of One's Own came from Virginia Woolf's essay A Room of One's Own. In 2007, the collective relaunched the magazine as Room, reflecting a more outward-facing, conversational editorial mandate; however, the original name and its inspiration is reflected in a quote from the Woolf essay that always appears on the back cover of the magazine.