Better

Better may refer to:

Music

Albums

Songs

Holding

Holding may refer to:

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Products Sold

Popular Holdings offers a wide variety of stationery, Books, assessment titles, multimedia products. These stationery includes files, writing material like pens and pencils, bags and water bottles. The bags that are sold in Popular are colourful, with some cartoons printed on them such as Mario and Cars. During festive seasons, you can find bags with Christmas trees printed on the bags. These bags have proven to be very popular with young children. Many of the stationery items are simple yet unique and trendy, for example, the pencil cases, there is a pencil case with many zips all over the case making its design unique thus, very popular among students and even adults working in offices. Books available at popular includes, Star Wars, Mr Midnight, The Dairy of Amos Lee which are all very trendy. Young students particularly love to read Mr Midnight as it offers a wide variety of ghost stories. Assessment titles are also available at popular to cater the needs of students academic. Some of the questions inside are not commonly seen in their school assignments. Thus, The assessment titles could enhance their knowledge and the students most probably will score better in their examination. Multimedia products are also available in Popular, such as, Dictionarys and Electronic Dictionarys. These Dictionarys are commonly used by school students as they will need it during examination.

Surjective function

In mathematics, a function f from a set X to a set Y is surjective (or onto), or a surjection, if every element y in Y has a corresponding element x in X such that f(x) = y. The function f may map more than one element of X to the same element of Y.

The term surjective and the related terms injective and bijective were introduced by Nicolas Bourbaki, a group of mainly French 20th-century mathematicians who under this pseudonym wrote a series of books presenting an exposition of modern advanced mathematics, beginning in 1935. The French prefix sur means over or above and relates to the fact that the image of the domain of a surjective function completely covers the function's codomain.

Definition

A surjective function is a function whose image is equal to its codomain. Equivalently, a function f with domain X and codomain Y is surjective if for every y in Y there exists at least one x in X with . Surjections are sometimes denoted by a two-headed rightwards arrow (U+21A0 ↠ RIGHTWARDS TWO HEADED ARROW), as in f : X ↠ Y.

String

String is a flexible piece of twine which is used to tie, bind, or hang other objects. A rope is made of six twines while a string is made up of less than 6 twines.

Examples of string use include:

String or strings may also refer to:

Music

Left

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