Vectors - Math is Fun
https://www.mathsisfun.com/algebra/vectors.html
SubtractingCalculationsAdding VectorsMagnitude of A VectorVector vs ScalarMultiplying A Vector by A ScalarMore Than 2 DimensionsMagnitude and DirectionAn Example The magnitude of a vector is shown by two vertical bars on either side of the vector: |a| OR it can be written with double vertical bars (so as not to confuse it with absolute value): ||a|| We use Pythagoras' theoremto calculate it: |a| = √( x2 + y2) A vector with magnitude 1 is called a Unit Vector.
The magnitude of a vector is shown by two vertical bars on either side of the vector: |a| OR it can be written with double vertical bars (so as not to confuse it with absolute value): ||a|| We use Pythagoras' theoremto calculate it: |a| = √( x2 + y2) A vector with magnitude 1 is called a Unit Vector.
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