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...Maths org step support programme matrices topic notes denitions manipulating transformations some proofs transformation invariant points and lines examples an alternative approach to invariants for interest only revisited thesenotesaredesignedtohelpsupportthestudyofthematricestopic which has been introduced into the new syllabus rst examination in light of changes a level specications they begin with brief summary relevant related results should mostly be familiar there is extensive section at end on elements individual items matrix usually numbers might unknown represented by letters are also known as entries dimensions size m rows n columns mbyn mostofthetimeyouwillbedealing square ones have same number conformable addition or subtraction two called if can added subtracted multiplication multiplied specied order equal second zero null one that every element it often written o adding gives whereas multiplying ao oa where dierent this equation may transpose what you get swap round so r...