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  1. Symbol Symbol Name Meaning / definition Example; x: x variable: unknown value to find: when 2x = 4, then x = 2: ≡: equivalence: identical to : ≜: equal by definition: equal by definition := equal by definition: equal by definition ~ approximately equal: weak approximation: 11 ~ 10: ≈: approximately equal: approximation: sin(0.01) ≈ 0.01 ...

  2. function derived from a given function and representing it by a series of sinusoidal functions. delta function. tool for the normalization of state vectors. lemniscate. infinity symbol. Mathematical symbol reference chart all mathematical symbols, their meaning, and examples: plus (+), minus (-), equality (=), inequality, times (×), divide (÷ ...

  3. List of mathematical symbols. The list below has some of the most common symbols in mathematics. However, these symbols can have other meanings in different contexts other than math. If x=y, x and y represent the same value or thing. If x≈y, x and y are almost equal. If x≠y, x and y do not represent the same value or thing.

    Symbol
    Name
    Read As
    Meaning
    =
    Equal
    is equal to
    If x=y, x and y represent the same value ...
    Definition
    is defined as
    If x≡y, x is defined as another name of ...
    Approximately equal
    is approximately equal to
    If x≈y, x and y are almost equal.
    Inequation
    does not equal, is not equal to
    If x≠y, x and y do not represent the same ...
  4. x2 + 5x − 6 = 0 x 2 + 5 x − 6 = 0. This quadratic equation includes both positive and negative coefficients, with the − sign denoting the negative value. In summary, the − symbol, or the minus sign, is a foundational component of mathematical notation. Its versatility and widespread application make it one of the most fundamental ...

  5. Sep 24, 2024 · The common and basic maths symbols along with their description and meaning are described in the table below: a × b is the multiplication of a and b. a . b is the multiplication of a and b. a * b is the multiplication of a and b. If a = b, a and b represent the same number.

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  7. Here the minus signs are understood as labels to be used as part of the symbol, e.g. “-3”. 3. As a “Flip” Operation. Soon after we learn about negative numbers, we would learn about the third meaning of the minus sign – the “flip” over zero. For a positive quantity or expression, the minus sign flips it across zero on the number line.

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