s='He was so tired'
ans = true
surface of a spherical planet
Return the first and last character of a string
Reindex a vector
find radius of cone
Matlab Basics - Logical Tests I
Find the product of the positive elements above the main diagonal.
Find the sum of the negative elements under the main diagonal.
Numerate input arguments
Create cotangent function out of sine.
Return the length of the longest word in the string.
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