In engineering and science, we need some tools for
processing large amounts of data. These tools are called
Number Utilities or Numerical Utilities. There are many
collections of tools, such as MatLab, PAW (Physics Analysis
Workstation), but one that is free and easy to use with
Pyhton and XGraph is Num-Utils. The information page for
Num-Utils is here: http://xgraph.org/numutil/
Unfortunately, these utilities must be re-compiled for
every different type of computer. But that’s not too hard
to do, and I did it for my students who are using Mac OSX
version 10.8
Instructions for my students:
1) Get the utilities from here: http://www.halverscience.net/python_coding/python_program_files/files/numutils_for_osx10.8.zip
2) Open your Downloads folder and double-click the
downloaded file it to unpack it. It will create a folder
called “numutils”
3) Drag the numutils folder to your home folder.
3) At this point it should work OK.
To test it, start the Terminal
cd ~ #Make sure we start in the home
folder
cd numutils
cd examples
./script_fft.bash #You should get two xgraph
plots.
Note: You might get an error from xgraph. To fix this
error,
go into your xgraph folder, delete xgraph, copy
xgraph_old_otk to xgraph
