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N-Root Formula for Amibroker (AFL)
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This function calculates the n-root of a number or array.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | //------------------------------------------------------------------------------//// This function calculates the n-root of a number or array.////------------------------------------------------------------------------------/*_______________________________________________________________________________________ SYNTAX: nRoot(index,number) PURPOSE: This function calculates the n-root of a number or array. The n-root of a negative number returns a zero value. HOW TO USE: Copy this file in your "include" directory or append it to another file that You use as "functions database". EXAMPLE: 1. if you want to calculate the square-root of 100, you can use indifferently: Square_root = Sqrt(100); or n_Root = nRoot(2,100); 2. if you want to calculate the cube-root of 100 or whatever: n_Root = nRoot(3,100); n_Root = nRoot(10,100); n_Root = nRoot(-2,Close); ______________________________________________________________________________________ */Function nRoot(index,number){ cond_r = index == 0 or number == 0 or number < 0; If_True = 0; If_False = (Exp ( (1 / index) * Log(number))); result = iif(cond_r, If_True, If_False); Return result;} |
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