Install libghc-cracknum-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-cracknum-doc
Description:
crack various integer, floating-point data formats; documentation
Display/show/analyze IEEE754 Half-precision, Single-precision, and Double-precision values; along with various integer types: Signed/Unsigned, 8, 16, 32, 64 bits. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://hackage.haskell.org/package/crackNum
Version: 1.9-1
Section: universe/doc