In math, we write multiplication several ways.
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As a dot between expressions:
In plain language, this means “multiply by ”.
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Using parentheses:
In plain language, this means “multiply by ”.
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We also write multiplication using implied multiplication. When no operator is present between variables and constants in an expression, the convention is to multiply them together. For example, the equation for a line is given below:
The implied operation between the value and the variable is multiplication.
In elementary math, the times symbol (×) is used to represent multiplicaiton.
This site does not use the times symbol to represent multiplication and instead uses it to represent the cross-product operator.
Addition is a fundamental arithmetic operation represented by the plus symbol (+). It combines two or more numbers into a single numerical value.
In mathematics, the minus symbol represents the subtraction operator. The expression on the right is subtracted from the expression on the left.
In math, we write division using a horizontal bar between the numerator and denominator.
In linear algebra, the cross product of two vectors is written using the times symbol (×).