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From Wikipedia
Mathematical notation is a system of symbolic representations of mathematical objects and ideas. Mathematical notations are used in mathematics, the physical sciences, engineering, and economics. Mathematical notations include relatively simple symbolic representations, such as numbers 1 and 2, function symbols sin and +; conceptual symbols, such as lim, dy/dx, equations and variables; and complex diagrammatic notations such as Penrose graphical notation and CoxeterDynkin diagrams.
Definition
A mathematical notation is a writing system used for recording concepts in mathematics.
 The notation uses symbols or symbolic expressions which are intended to have a precise semantic meaning.
 In the history of mathematics, these symbols have denoted numbers, shapes, patterns, and change. The notation can also include symbols for parts of the conventional discourse between mathematicians, when viewing mathematics as a language.
The media used for writing are recounted below, but common materials currently include paper and pencil, board and chalk (or dryerase marker), and electronic media. Systematic adherence to mathematical concepts is a fundamental concept of mathematical notation. (See also some related concepts: Logical argument, Mathematical logic, and Model theory.)
Expressions
A mathematical expression is a sequence of symbols which can be evaluated. For example, if the symbols represent numbers, the expressions are evaluated according to a conventional order of operations which provides for calculation, if possible, of any expressions within parentheses, followed by any exponents and roots, then multiplications and divisions and finally any additions or subtractions, all done from left to right. In a computer language, these rules are implemented by the compilers. For more on expression evaluation, see the computer science topics: eager evaluation, lazy evaluation, and evaluation operator.
Precise semantic meaning
Modern mathematics needs to be precise, because ambiguous notations do not allow formal proofs. Suppose that we have statements, denoted by some formal sequence of symbols, about some objects (for example, numbers, shapes, patterns). Until the statements can be shown to be valid, their meaning is not yet resolved. While reasoning, we might let the symbols refer to those denoted objects, perhaps in a model. The semantics of that object has a heuristic side and a deductive side. In either case, we might want to know the properties of that object, which we might then list in an intensional definition.
Those properties might then be expressed by some wellknown and agreedupon symbols from a table of mathematical symbols. This mathematical notation might include annotation such as
 "All x", "No x", "There is an x" (or its equivalent, "Some x"), "A set", "A function"
 "A mapping from the real numbers to the complex numbers"
In different contexts, the same symbol or notation can be used to represent different concepts. Therefore, to fully understand a piece of mathematical writing, it is important to first check the definitions that an author gives for the notations that are being used. This may be problematic if the author assumes the reader is already familiar with the notation in use.
History
Counting
It is believed that a mathematical notation to represent counting was first developed at least 50,000 years ago â€” early mathematical ideas such as finger counting have also been represented by collections of rocks, sticks, bone, clay, stone, wood carvings, and knotted ropes. The tally stick is a timeless way of counting. Perhaps the oldest known mathematical texts are those of ancient Sumer. The Census Quipu of the Andes and the Ishango Bone from Africa both used the tally mark method of accounting for numerical concepts.
The development of zero as a number is one of the most important developments in early mathematics. It was used as a placeholder by the Babylonians and Greek Egyptians, and then as an integer by the Mayans, Indians and Arabs. (See From Yahoo Answers
Answers:That's not very specific. But, hopefully this is helpful: http://www.xs4all.nl/~johanw/math.pdf
Answers:your best option is to find the syllabus for the exam you are retaking  they will probably summarise that information there Alternatively you can buy a formula book  they tend to be for formulae that you don't need to memorise as you can often take that in to the exam  like trig relationships This site has a good list http://www.math.com/tables/index.html General math and geometry will cover most of what you need By the way  are you doing a GCSE resit? Ask your teacher for a formula list
Answers:a = 1/2(b*h) area of triangle l*W area of rectangle 2L+2W perimeter of rectangle A= pi r^2 area of circle x^2 + y^2 = r^2 Pythagorean theorem [b + Sqrt(b^2 4 *A*c)]/( 2*A) Quadratic formula sin^2 x + cos^2 x = 1 trigonometric identity 1 + cot^2 x = csc^2 x trigonometric identity tan^2x + 1 = sec^2x trigonometric identity x^2 ( x represents side of square) area of a square
Answers:If I understood right, I think what you looking for is (IF). 1 click on INSERT (menu) 2 select fx (function) 3 select a function (IF) 4 office assistant with guide you through
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