- #1
coffekreizy
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If A=(A1,A2,A3) and B=(B1,B2,B3), WHAT does this notation mean? :
(\vec{A} \times \vec{B})_\bot
(\vec{A} \times \vec{B})_\bot
In mathematics and science, "x" is often used as a variable to represent an unknown quantity or value. It can also represent a specific value that can vary in different situations.
Superscripts (written above the baseline) and subscripts (written below the baseline) are used to indicate certain properties or values related to a variable or number. For example, in the notation "x2", the subscript 2 indicates that the variable "x" is being evaluated at the second position, or that the value of x is squared.
In mathematics, "Σ" (the Greek letter sigma) represents a summation, meaning that the values following it are being added together. It is commonly used in equations involving series or sequences.
The exclamation mark in mathematical notation is used to indicate the factorial operation. For example, "5!" means 5 factorial, which is equal to 5 x 4 x 3 x 2 x 1 = 120.
"≈" (approximately equal to) is used to indicate that two values are very close, but not exactly equal. On the other hand, "=" (equals) is used to show that two values are exactly equal. For example, "π ≈ 3.14" means that π is approximately equal to 3.14, but not exactly equal to it.