consider using isequalwithequalnans (isequaln) against NaN instead of isequal against 'NaN' in test 7.
how to place negative amount of 'wheat' on a chessboard?
the prob is gd but the test suites are unnecessarily jumbled up.
This should also be slimmed down somehow.
Someone can easily beat this lead.
Extract leading non-zero digit
What is the distance from point P(x,y) to the line Ax + By + C = 0?
middleAsColumn: Return all but first and last element as a column vector
Try 1.5.4: Celsius to Fahrenheit
Will there be a new leader?
Possible Outcomes of American Roulette
Wheat on a chessboard pt 1
Calculate Alcohol By Volume with Original and Final Gravity
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