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
Remove NaN ?
First non-zero element in each column
Divide by 4
Matlab Basics II - Log and natural log
Matlab Basics - Pick out parts of a vector
Matlab Basics II - 3 Dimensional Arrays
Matlab Basics - Assigning Variables
Matlab Basics - Create a row vector
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