test is a given integer number is Happy of not?
answer 1 if yes or 0 is no
sorry for that.
First N Perfect Squares
Convert a numerical matrix into a cell array of strings
Whether the input is vector?
Arrange vector in ascending order
Area of a triangle
Create numeric palindromes and their square roots
Convert vector datasets to plot with imagesc instead of scatter
Tony's trick for duplicating an mx1 vector n times
provide the numerical answer to these number questions...
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