Given vector x, calculate the alternating sum
y = x(1) - x(2) + x(3) - x(4) + ...
Find all elements less than 0 or greater than 10 and replace them with NaN
Get the length of a given vector
Test if two numbers have the same digits
02 - Vector Variables 5
Make a half wave rectifier
Mean ignoring NaNs
Leap years on other planets
Evaluating continued fractions
James Bond film count
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