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Jun 15, 2015 · The Hat symbol can be used to denote a vector. And the Star symbol may possibly used to denote a binary operation. For example a non empty set G with a binary operation ⋆ is said to be a Group if..... Share. Cite. answered Mar 10, 2011 at 17:37. community wiki.
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Oct 28, 2024 · The word "star" is used in a number of different ways in mathematics. The term is commonly used to voice an asterisk when appearing in a mathematical expression. For example, a^* is voiced "a-star". The "star" is something used to denote the adjoint a^*, or sometimes the complex conjugate. In common usage, a star is a star polygon or star figure (i.e., regular convex polygon or polygon ...
Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...
Mathematicians frequently use an accent to create a new variable from an old one. This is usually done to denote a mathematical object with some specific functional relationship with the old one. The most commonly used accents over the letter are arrow, bar, check, dot, hat and tilde. prime and star may be used after the letter as a superscript.
Computer Science: In some programming languages, the ⋆ might represent a pointer or be used as a wildcard character in search patterns. Databases: In SQL, the ⋆ is used to select all columns from a table. Mathematics: In general, it can denote a special operation or function that has been defined for a specific use case. Examples
Since the asterisk isn't used as an operation symbol (except in computer programming), we often use the asterisk as our operation symbol. Since the asterisk looks like a star, we dubbed it a "star operation." Let's look at an example: Example One. We'll define our rule as follows a * b = a 2 + b 2. This means that if we see something like 3 * 5 ...
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Use stars and bars: each star represents one of the 5 elements of the set, each bar represents a switch between digits. So there are 5 stars and 9 bars, giving us \ ( {14 \choose 9}\) sets. 2. Each of the counting problems below can be solved with stars and bars. For each, say what outcome the diagram.
