Given three integers x, y and d, return x/y (as a string) to d significant digits. Remove leading and trailing zeros.
x = 11; y = 7; d = 10;
z = adiv(x,y,d)
Remove any row in which a NaN appears
Volume of this donut
random picture with random colours
Are you in or are you out?
sum of non-primes
Create an 'arrow-head" matrix
Flexible Anonymous Function
Get ranks of values in a vector
Count up then down
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