Write a script to round a large number to the nearest 10,000
e.g. x = 12,358,466,243 --> y = 12,358,470,000
You can write as many zeros as you want after 12358470000.0, it's still the same number as 12358470000
First non-zero element in each column
Back to basics 10 - Max Float
Side of a rhombus
Matlab Basics - Rounding II
Matlab Basics II - Extract last 3 elements of a vector
Matlab Basics - Switching Assignments
Replace every 3rd element in a vector with 4
Matlab Basics II - squares
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