Make a checkerboard matrix
Get the length of a given vector
Replace multiples of 5 with NaN
Calculate distance travelled when given radius and rotations
Convert Fahrenheit to Celsius
Calculate the hypotenuse of a right triangle without using ^ and sqrt ()
How many hours are there in a day in Italy?
Determinate if day D is a date that occurs during Daylight Saving Time in Italy
Calculate cosine without cos(x)
Calculate sin(x) without sin(x)
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