diff --git a/ChangeLog.md b/ChangeLog.md
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+# Revision history for uniqueness-periods-vector-filters
+
+## 0.1.0.0 -- 2020-09-17
+
+* First version. Released on an unsuspecting world.
diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+Copyright (c) 2020 OleksandrZhabenko
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/Languages/UniquenessPeriods/Vector/Filters.hs b/Languages/UniquenessPeriods/Vector/Filters.hs
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+-- |
+-- Module      :  Languages.UniquenessPeriods.Vector.Filters
+-- Copyright   :  (c) OleksandrZhabenko 2020
+-- License     :  MIT
+-- Stability   :  Experimental
+-- Maintainer  :  olexandr543@yahoo.com
+--
+-- A module allows to change the structure of the function output for the functions of 
+-- elements from 'RealFrac' class. At the moment only the equal intervals are supported. 
+
+module Languages.UniquenessPeriods.Vector.Filters (
+  -- * One interval used
+  intervalNRealFrac
+  , unsafeTransfer1I5
+  , transfer1IEq3
+  -- * Several intervals
+  , unsafeRearrangeIG
+  , unsafeRearrangeIGV
+) where
+
+import CaseBi
+import qualified Data.Vector as V
+
+-- | Given the minimum and maximum elements, a quantity of equal intervals, and an element in between the first two arguments (or equal to one of them), finds out the 
+-- index of the interval, to which the element belongs (starting from 1). The minimum element belongs to the interval with the index 1.
+intervalNRealFrac 
+  :: RealFrac b => b 
+  -> b 
+  -> Int
+  -> b 
+  -> Int
+intervalNRealFrac minE maxE n x = zero2One . ceiling $ fromIntegral n * (x - minE) / (maxE - minE)
+{-# INLINE intervalNRealFrac #-} 
+
+zero2One :: Int -> Int
+zero2One x = if x == 0 then 1 else x
+{-# INLINE zero2One #-} 
+
+-- | Moves (if needed) the given value so that its result divides the new [min..max] interval in the same proportion as the starting one. Is intended to be used 
+-- for the arguments satisfying some additional constraints, but they are not checked (hence, its name prefix \"unsafe\"). For example, the second argument must be 
+-- greater than the first one, the fourth -- than the third one, and the fifth must be located in between the first two. Then the result is also located in between 
+-- the third and fourth arguments similarly. 
+unsafeTransfer1I5
+  :: RealFrac b => b
+  -> b
+  -> b
+  -> b
+  -> b
+  -> b
+unsafeTransfer1I5 minE0 maxE0 minE1 maxE1 x = minE1 + (x - minE0) * (maxE1 - minE1) / (maxE0 - minE0) 
+{-# INLINE unsafeTransfer1I5 #-} 
+
+-- | A variant of the 'unsafeTransfer1I5' where the lengths of the both intervals (the old and the new ones) are equal.
+transfer1IEq3
+  :: RealFrac b => b
+  -> b
+  -> b
+  -> b
+transfer1IEq3 minE0 minE1 = (+ (minE1 - minE0))
+{-# INLINE transfer1IEq3 #-} 
+
+-- | Makes a complex interval-based transformation moving the value from its own interval to the corresponding by the 'V.Vector' of tuples second element of the 
+-- respective pair with the first element being the starting number of the interval (numeration of them begins at 1). The 'V.Vector' argument must be sorted 
+-- by the first argument in the ascending order. Usually, its first elements in the tuples are from the range @[1..n]@. Number of the intervals are given as 
+-- the third argument and for many cases should not be greater than 10. There do exist several semantical constraints for the possible accurate arguments, 
+-- but they are not checked. For example, the first argument must be less than the second one; the fifth argument must be located between the first two ones; 
+-- the 'Int' argument must be greater than zero. 
+unsafeRearrangeIG 
+  :: RealFrac b => b
+  -> b
+  -> Int
+  -> V.Vector (Int,Int)
+  -> b
+  -> b
+unsafeRearrangeIG minE maxE n v x = x + fromIntegral (getBFst' (n0, v) n0 - n0) * (maxE - minE) / fromIntegral n
+   where n0 = intervalNRealFrac minE maxE n x
+
+-- | An unzipped variant of the 'unsafeRearrangeIG' function where the 'V.Vector' argument is internally 'V.zip'ped as the second argument with the 'V.Vector' @[1..n]@. 
+-- This allows to shorten the time of the arguments writing given only the resulting backpermutted indexes in the 'V.Vector'.
+unsafeRearrangeIGV 
+  :: RealFrac b => b
+  -> b
+  -> Int
+  -> V.Vector Int
+  -> b
+  -> b
+unsafeRearrangeIGV minE maxE n v = unsafeRearrangeIG minE maxE n . V.zip (V.enumFromN 1 n) . V.filter (\y -> compare y 0 /= LT && compare y n == LT) $ v 
+{-# INLINE unsafeRearrangeIGV #-}            
diff --git a/Setup.hs b/Setup.hs
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+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/uniqueness-periods-vector-filters.cabal b/uniqueness-periods-vector-filters.cabal
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+++ b/uniqueness-periods-vector-filters.cabal
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+-- Initial uniqueness-periods-vector-filters.cabal generated by cabal init.
+--   For further documentation, see http://haskell.org/cabal/users-guide/
+
+name:                uniqueness-periods-vector-filters
+version:             0.1.0.0
+synopsis:            A library allows to change the structure of the 'RealFrac' function output.
+description:         A library allows to change the structure of the 'RealFrac' function output. At the moment only the equal intervals are supported. 
+
+homepage:            https://hackage.haskell.org/package/uniqueness-periods-vector-filters
+license:             MIT
+license-file:        LICENSE
+author:              OleksandrZhabenko
+maintainer:          olexandr543@yahoo.com
+copyright:           Oleksandr Zhabenko
+category:            Data,Language,Math,Game
+build-type:          Simple
+extra-source-files:  ChangeLog.md
+cabal-version:       >=1.10
+
+library
+  exposed-modules:     Languages.UniquenessPeriods.Vector.Filters
+  -- other-modules:
+  -- other-extensions:
+  build-depends:       base >=4.7 && <4.15, mmsyn2 >=0.1.8 && <1, vector >=0.11 && <0.14
+  -- hs-source-dirs:
+  default-language:    Haskell2010