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  2. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    [2] [3] Thus, in the expression 1 + 2 × 3, the multiplication is performed before addition, and the expression has the value 1 + (2 × 3) = 7, and not (1 + 2) × 3 = 9. When exponents were introduced in the 16th and 17th centuries, they were given precedence over both addition and multiplication and placed as a superscript to the right of ...

  3. Operation (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Operation_(mathematics)

    There are two common types of operations: unary and binary. Unary operations involve only one value, such as negation and trigonometric functions. [3] Binary operations, on the other hand, take two values, and include addition, subtraction, multiplication, division, and exponentiation. [4] Operations can involve mathematical objects other than ...

  4. Talk:Order of operations - Wikipedia

    en.wikipedia.org/wiki/Talk:Order_of_operations

    As I mentioned in my revert, you are correct, parentheses are not technically operations, but since they affect that order in which the operations are performed, it becomes necessary to mention them. Furthermore, it is also necessary to know what the priority level of the parentheses is compared to every other operations.

  5. List of mathematical functions - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_functions

    Thomae's function: is a function that is continuous at all irrational numbers and discontinuous at all rational numbers. It is also a modification of Dirichlet function and sometimes called Riemann function. Kronecker delta function: is a function of two variables, usually integers, which is 1 if they are equal, and 0 otherwise.

  6. Expression (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Expression_(mathematics)

    A term is a constant or the product of a constant and one or more variables. Some examples include ,,, The constant of the product is called the coefficient. Terms that are either constants or have the same variables raised to the same powers are called like terms. If there are like terms in an expression, one can simplify the expression by ...

  7. Characteristic function (probability theory) - Wikipedia

    en.wikipedia.org/wiki/Characteristic_function...

    This function is real-valued because it corresponds to a random variable that is symmetric around the origin; however characteristic functions may generally be complex-valued. In probability theory and statistics, the characteristic function of any real-valued random variable completely defines its probability distribution.

  8. List of types of functions - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_functions

    Harmonic function: its value at the center of a ball is equal to the average value on the surface of the ball (mean value property). Also subharmonic function and superharmonic function . Elementary function : composition of arithmetic operations, exponentials , logarithms , constants, and solutions of algebraic equations .

  9. Associated Legendre polynomials - Wikipedia

    en.wikipedia.org/wiki/Associated_Legendre...

    This equation has nonzero solutions that are nonsingular on [−1, 1] only if ℓ and m are integers with 0 ≤ m ≤ ℓ, or with trivially equivalent negative values. When in addition m is even, the function is a polynomial. When m is zero and ℓ integer, these functions are identical to the Legendre polynomials.