Back to basics 14 - Keywords
Back to basics 25 - Valid variable names
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Area of an equilateral triangle
Convert vector datasets to plot with imagesc instead of scatter
Create numeric palindromes and their square roots
Tony's trick for duplicating an mx1 vector n times
provide the numerical answer to these number questions...
remove nans fast
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