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by robinhouston
5518 days ago
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Sorry. I think it’s only the jargon that’s confusing you. As long as you can remember (or look up) the definition of matrix multiplication, then it genuinely is easy to verify. [ fib(n-1) fib(n) ] x [0 1]
[ fib(n) fib(n+1) ] [1 1]
= [ fib(n) fib(n-1)+fib(n) ]
[ fib(n+1) fib(n)+fib(n+1) ]
= [ fib(n) fib(n+1) ]
[ fib(n+1) fib(n+2) ]
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