These extension functions are written by Liam Healy and made available through the SQLite website (https://www.sqlite.org/contrib).
acos, acosh, asin, asinh, atan, atan2, atanh, atn2, ceil, cos, cosh, cot, coth, degrees, difference, exp, floor, log, log10, pi, power, radians, sign, sin, sinh, sqrt, square, tan, tanh
charindex, leftstr, ltrim, padc, padl, padr, proper, replace, replicate, reverse, rightstr, rtrim, strfilter, trim
stdev, variance, mode, median, lower_quartile, upper_quartile
1 2 3 4 5 6 7
stdev(mpg) 1 6.026948  6.026948
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