Find the sum, given the first term t1, the common ratio r, and number of terms n.
If input t1=1, r=1, n=7 then output y=7
If input t1=10, r=10, n=5 then output y=111110.
Encode Roman Numerals
Back to basics 2 - Function Path
Generate one sample of uniform random numbers between -pi and +pi
Acidity of vinegar and salts
Multiply a column by a row
Given n, create n random numbers such that their standard deviation is also n.
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