Like any other piece of software (and information generally), djbfft
comes with NO WARRANTY.


Things you have to decide before starting:

* Where the library will be installed, normally /usr/local/djbfft. To
change this directory, edit conf-home now.


How to install:

 1. Compile the library and test programs:
       % make
 2. Create the formatted man pages, *.0:
       % make man
 3. Install the library, include files, and man pages:
       # make setup


How to test:

 4. Check the cumulative errors for a spanning set of transforms:
       % ./accuracy
    Typical totals range up to 10^{-8} for single-precision transforms
    and 10^{-25} for double-precision transforms. If you see any numbers
    larger than 10^{-5}, please let me know.
 5. See how fast the transforms are:
       % ./speed
    The results are nanoseconds per point for a complex DFT, then
    nanoseconds per point for the scaled inverse, for each size; first
    for single precision, then for double precision.


That's it! To report success:
       % ( echo 'First M. Last'; cat `cat SYSDEPS`; ./speed ) \
         | mail djb-qst@cr.yp.to
Replace First M. Last with your name.
