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Welcom to Bath Gallery バースギャラリーWelcomhttp://thebathgallery.net/ |
Gallery ギャラリーAn art gallery or art museum is a space for the exhibition of art, usually visual art. Paintings are the most commonly displayed art objects; however, sculpture, photographs, illustrations, installation art and objects from the applied arts may also be shown. Although primarily concerned with providing a space to show works of visual art, art galleries are sometimes used to host other artistic activities, such as music concerts or poetry readings.The term is used both for both public galleries, which are museums for the display of selected collection of art. On the other hand private galleries refers to the commercial enterprises for the sale of art. However, both types of gallery may host temporary exhibitions including art borrowed from elsewhere.
The rooms in museums where art is displayed for the public are often referred to as galleries as well, with a room dedicated to Ancient Egyptian art often being called the Egypt Gallery, for example.
The term contemporary art gallery refers usually to a privately-owned for-profit commercial gallery. These galleries are often found clustered together in large urban centers. The Chelsea district of New York City, for example, is widely considered to be the center of the contemporary art world. Even small may be home to at least one gallery, but they may also be found in small communities, and remote areas where artists congregate, i.e. the Taos art colony and St Ives, Cornwall.
Contemporary art galleries are usually open to the general public without charge; however, some are semi-private. They usually profit by taking a cut of the art's sales; from 25 to 50% is usual. There are also many not-for-profit and art-collective galleries. Some galleries in cities like Tokyo charge the artists a flat rate per day, though this is considered distasteful in some international art markets. Galleries often hang solo shows. Curators often create group shows that say something about a certain theme, trend in art, or group of associated artists. Galleries sometimes choose to represent artists exclusively, giving them the opportunity to show regularly.
A gallery's definition can also include the artist run centre, which often (in North America and Western Europe) operates as a space with a more democratic selection and mentality. An artist-run space also typically has a board of directors and a support staff that select and curate shows by committee, or some kind of similar process to choose art that typically lacks commercial ends.
square 正方形In algebra, the square of a number is that number multiplied by itself. To square a quantity is to multiply it by itself. Its notation is a superscripted "2"; a number x squared is written as x2. Thus:
If x is a positive real number, the value of x2 is equal to the area of a square of edge length x.
A positive integer that is the square of some other integer, for example 25 which is 52, is known as a square number, or more simply a square.
It is often also useful to note that the square of any number can be represented as the sum (for 0?n)
1 + 1 + 2 + 2 + ... + (n ? 1) + (n ? 1) + n.
For instance, the square of 4 or 42 is equal to
1 + 1 + 2 + 2 + 3 + 3 + 4 = 16.
This is the result of adding a column and row of thickness 1 to the square graph of three (like a tic tac toe board). You add three to the side and four to the top to get four squared. This can also be useful for finding the square of a large number quickly. For instance, the square of
522 = 502 + 50 + 51 + 51 + 52 = 2500 + 204 = 2704.
In addition, it can be seen that another equivalent sum may be used to represent the square of a number. The square of a number N is the sum of the first N odd numbers. The square of 1 is 1; the square of 2 is
1 + 3 = 4;
the square of 7 is
1 + 3 + 5 + 7 + 9 + 11 + 13 = 49.
and so on. This, of course is the same as the previous sum method but with every two numbers following the initial number added to each other:
1 + ( 1 + 2 ) + ( 2 + 3 ) + ( 3 + 4 ) + ... = 1 + 3 + 5 + 7 + ...
The general term of the series 12 + 22 + 32 + 42 + ... + n2 is n(n + 1)(2n + 1) / 6. The first terms of this series (the Square pyramidal numbers) are :
0, 1, 5, 14, 30, 55, 91, 140, 204, 285, 385, 506, 650, 819, 1015, 1240, 1496, 1785, 2109, 2470, 2870, 3311, 3795, 4324, 4900, 5525, 6201... (sequence A000330 in OEIS) from wikipedia |
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