solutions are rounded in a somewhat arbitrary fashion...
Your value of pi is wrong.
The problem should specify that the used value for pi is 3.1416 (since this is not its true value), and that we need to use floor with precision of 4 decimal places.
Who invented zero?
Wind Chill Computation
Test if a number is numeric or not
Conversion from hours to mili sec
Divisible by 5
Rank of matrix
Output a vector which is table of 9
To convolve two vectors
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