test is a given integer number is Happy of not?
answer 1 if yes or 0 is no
sorry for that.
surface of a spherical planet
Make a run-length companion vector
Detect a number and replace with two NaN's
Do you like your boss?
Generate this matrix
Create numeric palindromes and their square roots
Convert a Cell Array into an Array
Convert vector datasets to plot with imagesc instead of scatter
provide the numerical answer to these number questions...
Tony's trick for duplicating an mx1 vector n times
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