X what does it mean in math

We start this section by introducing an important number theoretic function. We proceed in defining some convenient symbols that will be used in connection with the growth and behavior of some functions that will be defined in later chapters. We now define some symbols that will be used to estimate the growth of number theoretic functions. These symbols will be not be really appreciated in the context of this book but these are often used in many analytic proofs.

When an object or point moves in a cyclic pattern, or is subject to vibration or oscillation e. See an introduction to geometry for more. The line connecting the centre of a regular polygon with one of its sides. The line is perpendicular at a right angle to the side. Geometric area is defined as the space occupied by a flat shape or the surface of an object.

Area is measured in square units, such as square metres m 2. For more, see our page on area, surface area and volume. An asymptote is a straight line or axis that is specifically related to a curved line. As the curved line extends tends to infinity, it approaches, but never touches, its asymptote that is, the distance between the curve and the asymptote tends to zero.

It occurs in geometry and trigonometry. A line of reference about which an object, point or line is drawn, rotated or measured. In a symmetrical shape, an axis is usually a line of symmetry. A coefficient is a number or quantity multiplying another quantity. It is usually placed before a variable. In the expression 6 x , 6 is the coefficient and x is the variable.

The circumference is the length of the distance around the edge of a circle. It is a type of perimeter that is unique to circular shapes. For more, see our page on curved shapes. Data are a collection of values, information or characteristics, which are often numerical in nature. They may be collected by scientific experiment or other observational means.

They may be quantitative or qualitative variables. A datum is a single value of a single variable. See our page on Types of Data for more.

Diameter is a term used in geometry to define a straight line that passes through the centre of a circle or sphere, touching the circumference or surface at both ends. The diameter is twice the radius. Extrapolate is a term used in data analysis.

It refers to the extension of a graph, curve, or range of values into a range for which no data exists, inferring the values of unknown data from trends in the known data. A factor is a number that we multiply by another number. A factor divides into another number a whole number of times. Most numbers have an even number of factors. A square number has an odd number of factors. A prime number has two factors — itself and 1.

A prime factor is a factor that is a prime number. The mean average of a set of data is calculated by adding all numbers in the data set and then dividing by the number of values in the set. When the data set is ordered from least to greatest, the median is the middle value. Create a free Team What is Teams? Learn more. What does the notation [x] mean in this question?

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