Search results
Results from the WOW.Com Content Network
are solved using cross-multiplication, since the missing b term is implicitly equal to 1: a 1 = x d . {\displaystyle {\frac {a}{1}}={\frac {x}{d}}.} Any equation containing fractions or rational expressions can be simplified by multiplying both sides by the least common denominator .
The multiplication sign (×), also known as the times sign or the dimension sign, is a mathematical symbol used to denote the operation of multiplication, which results in a product. [ 1 ] The symbol is also used in botany , in botanical hybrid names .
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.
The following are important identities in vector algebra.Identities that only involve the magnitude of a vector ‖ ‖ and the dot product (scalar product) of two vectors A·B, apply to vectors in any dimension, while identities that use the cross product (vector product) A×B only apply in three dimensions, since the cross product is only defined there.
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.
Multiplication is a mathematical operation of repeated addition. When two numbers are multiplied, the resulting value is a product. The numbers being multiplied are multiplicands, multipliers, or factors. Multiplication can be expressed as "five times three equals fifteen", "five times three is fifteen" or "fifteen is the product of five and ...
This is not what the lay person thinks of when reading the word cross. Technically, I guess it is a saltire, but that word's is too arcane (Wikipedia even marks it as wrong as I write it). Is "ecks" really not what it is? Certainly as kids learning multiplication we considered it "ecks"/"ex".211.225.33.104 09:33, 9 July 2014 (UTC)
Personal anecdote from the UK: at first school and middle school, when maths lessons were really just arithmetic, the only symbol we used for multiplication was the cross. (And likewise, division was always represented by an obelus (÷), although we didn't call it that).