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  2. Cross-multiplication - Wikipedia

    en.wikipedia.org/wiki/Cross-multiplication

    Cross-multiplication is a shortcut, an easily understandable procedure that can be taught to students. Use. This is a common procedure in mathematics, used to reduce ...

  3. Multiplication - Wikipedia

    en.wikipedia.org/wiki/Multiplication

    Multiplication (often denoted by the cross symbol ×, by the mid-line dot operator ⋅, by juxtaposition, or, on computers, by an asterisk *) is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division.

  4. Cross product - Wikipedia

    en.wikipedia.org/wiki/Cross_product

    The cross product with respect to a right-handed coordinate system. In mathematics, the cross product or vector product (occasionally directed area product, to emphasize its geometric significance) is a binary operation on two vectors in a three-dimensional oriented Euclidean vector space (named here ), and is denoted by the symbol .

  5. Operation (mathematics) - Wikipedia

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

    An example of an external operation is scalar multiplication, where a vector is multiplied by a scalar and result in a vector. An n -ary multifunction or multioperation ω is a mapping from a Cartesian power of a set into the set of subsets of that set, formally ω : X n → P ( X ) {\displaystyle \omega :X^{n}\rightarrow {\mathcal {P}}(X)} .

  6. Talk:Cross-multiplication - Wikipedia

    en.wikipedia.org/wiki/Talk:Cross-multiplication

    1 Why cross multiply :) 2 comments. 2 Merge. 12 comments. 3 Not to be confused? 1 comment. Toggle the table of contents. Talk: Cross-multiplication. Add languages.

  7. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    For example, multiplication is granted a higher precedence than addition, and it has been this way since the introduction of modern algebraic notation. [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.

  8. Category:Multiplication - Wikipedia

    en.wikipedia.org/wiki/Category:Multiplication

    This page was last edited on 17 December 2020, at 23:13 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  9. Dyadics - Wikipedia

    en.wikipedia.org/wiki/Dyadics

    There are numerous ways to multiply two Euclidean vectors. The dot product takes in two vectors and returns a scalar , while the cross product [ a ] returns a pseudovector . Both of these have various significant geometric interpretations and are widely used in mathematics, physics , and engineering .