Vectors
Maths: Edexcel IGCSE Higher, topic 5.1.1
Vector Notation
Vectors represent a movement in a certain direction with a certain size. Vectors can be written in the following ways:
Meaning the vector from point A to point B
Bold type, underline or squiggle underneath indicates it is a vector (not just a number)
Column vector
- This one says the vector goes 3 units to the right then 3 units down.
Adding column vectors
Vector Addition and Subtraction
Addition
- If a and b are vectors then their sum (a + b) means go along a then go along b.
- The addition of two vectors is called the resultant vector.
Subtraction
- Their difference (a - b) means go along a then go backwards along b.
Test yourself on Vectors
What does this vector mean?
What is c in terms of a and b?
What is c in terms of a and b?
What is c in terms of a and b?
What is the resultant vector of and ?