# Math Symbols

In this page we are going to see math symbols. Here we have given list of mathematics symbols. We have listed out the symbols by topic wise.Here you can find meaning of each symbols and their usage. You can find meaning and usage of almost every symbols in math. Some times in the middle working a problem we may have to use one of these symbols.

# Symbols in Algebra

 Symbol Name Uses Plus (or) Addition Used to add two numbers.Example :  2 + 3 = 5 Minus (or) Subtraction Used to subtract two numbers.Example :  3 - 1 = 2 Multiplication Used to multiply two numbers.Example :  3 x 2  = 6 3 * 2 = 6 Division Used to divide two numbers.Example :  6 ÷ 2  = 3 6/2 = 3 Equal sign Equal sign is used to represent two equal values.Example :x = 2.We can use 2 instead of x. Not equal sign Used to represent two values are not equal.Example : a ≠ b. Here the values of a and b are not equal. Less than symbol It is used to represent when one number is smaller than another number. Example :  5 < 10 Greater than symbol It is used to represent when one number is greater than another number.Example : 10 > 5 Less than or equal Used to represent the value of variable less than or equal to a number.Example : 1 < A ≤ 5. A = {2,3,4,5} Greater than or equal Used to represent the value of a variable is greater than or equal to the given number.Example :  A ≥ 2 A = {2,3,4,........} Parentheses Need to simplify the numbers which is in this parentheses first.Example : =  2 + (3 x 2) =  2 + 6=  8 Bracket Need to simplify the numbers which is in the bracket first.Example : = 5 x [2+(3x2)] =  5 x [2 + 6]=  5 x 8= 40 Square root One term should be taken out of the radical if we have two same terms which are multiplying inside the radical.Example : √ 4 = √ 2 x 2       = 2 Cube root One term should be taken out of the radical if we have three same terms which are multiplying inside the cube root.Example : ∛8 = ∛ 2 x 2 x 2     =  2

These are the math symbols in the topic algebra.

# Symbols in Set Language Belongs to A particular term is the element of a particular group.Example : A = {1,2,3,4,5}B = {x, x ∈ A} Not belongs to A particular term is not the element of a particular group.Example : A = {1,2,3,4,5}B = {x, x ∉ A} Braces (or) Set Bracket Used to represent sets.Example : A is a set which is containing 5 elements A = {1,2,3,4,5} Union Union of two sets A U B is a set containing all elements of A and B.Example : A = {1,2} B = {3,4}A U B = {1,2,3,4} Intersection Intersection of sets is a set containing the  common elements in both A and B.Example : A = {1,2,3} B = {1}  Set difference The set difference A - B is a set containing the elements of A but not the element of B.Example : A={1,2,3,4} B= {3,4,5}A - B = {1,2} Symmetric difference The symmetric difference of two sets A and B is the set union of A - B and B - A  Example : A={1,2,3,4} B= {3,4,5}A - B = {1,2} B - A = {5}  Complement of a set The complement of a set A is set containing the elements of universal set.Example : U = {1,2,.....6}A = {1,2,3}A' = {4,5,6} Null set The set which contains no elements is called null set. To represent the null set we use this symbol Subset represents all the elements of A are also element of B. Proper subset A ⊂ B represents all the elements of set A are the elements of set B and set A≠set B  which means B must contain at least one element not is set A. Equal sets A = B means set A and set B is containing the exactly same elements. Equivalent sets A <-> B means set A and set B is containing the same number of elements. Composite function f o g means we shall obtain the results of mapping of g first and then carry out the mapping f on these second result.Example : f(x) = x² g(x) = x + 2fog = (x + 2) ²

These are the math symbols used in set language.

# Symbols in Statistics Tally marks For the sake of convenience we will record the tally marks in bunches of five, the fifth one crossing the other four diagonally. By counting the tally marks, we get the corresponding frequency. Arithmetic mean The arithmetic mean of a set numbers is equal to their sum divided by the number of numbers in the set.  Standard deviation (sigma) Standard deviation is the square root of the mean of the squares of the differences of individual scores from the mean. Variance(sigma squared) The mean of the squares of the deviation of the values of the variable is known as variance Population mean The population mean is the real mean of entire population of data. Range Range means all output values of a function. It is calculated by the formula L - S Large value The maximum value in all output. Small value The minimum value in all output. Coefficient of variation Coefficient of variation represents the ratio of μ and mean.

These are the math symbols used in statistics.

# Math Symbols in Geometry Point A point is used to represent a position in space. Theoretically a point that does not has shape or size. Line A set of points that extend infinitely in opposite directions is called line. We use the symbol. The line has many points. Line segment The line segment is a part of the line which is having two end points Ray Ray is nothing but a part of a line with one end point. Curved line The line which is not straight is called the curved line. Angle Angle is formed by two rays with common end points. Parallel lines If two lines are always at the same distance apart and will not meet. These are known as parallel lines.We are using the symbol || to represent parallel line. Perpendicular Lines which are at right angles (90°) to each other. Triangle A shape which is having three sides is called by triangle. Right Angle triangle If one of the angle in a triangle  measures 90° this kind of triangle is called right triangle. Not parallel Two lines which is not having same distance apart is called not parallel lines. Degree A degree is usually denoted by degree. Congruent Symbol Two identical shapes are same in size is known as congruent shapes.  Similar Two identical shapes but not same in size is known as similar shapes. These are the math symbols used in geometry.

# Math Symbols in Number System Natural numbers The set of all natural numbers. Natural numbers starts with 1. Integer Integer means a whole number (not a fractional part) that can be positive or negative or zero. Whole number Whole numbers means a set of non negative integers. Even numbers Even numbers means numbers which are divisible by 2. Odd numbers Odd number means numbers which are not divisible by 2. Rational numbers Rational number is a number that can be denoted as the ratio of two numbers Real numbers Real number can be a positive or negative number which have decimal places after the point. Complex numbers A numbers which is having two parts and represented in the form of a + ib is known as complex numbers. For all For all means a set of numbers which satisfies the given condition.

Those are the math symbols that we are using in math. We have used many of these math symbols in certain situation. We hope that this page will be very useful to students who are trying to get meaning of some symbols. From now let us use the symbols by knowing their purpose. Thanks for using this page.

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