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# General Vectors and Their Notations

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Equal Vectors
Vectors barA and barBare said to be equal if |barA|=|bar B| as well as their directions are same.

Zero Vector
A vector with zero magnitude and an arbitrary direction is called a zero vector. it is represented by barO and also known as null vector.

Negative of a Vector
The vector whose magnitude is same as that of bara but the direction is opposite to that of bara is called the negative of bara and is written as -bara

Parallel Vectors
bar A and barB are said to be parallel vectors if they have same direction, and may or may not have magnitude (barA || barB). If the directions are opposite, then barA is anti-parallel to barB

Coplanar Vectors
Vectors are said to be coplanar if they lie in the same plane or they are parallel to the same plane. Otherwise they are said to be non-coplanar vectors.

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