Jim's Matrix  - a C programming example

I encourage you to use this model as a template.
There are other approaches to programming in C,
but the approach here has worked well for me.

Jim Mahoney | Jan 2016 | MIT License

Features

 * one executable (test) from multiple C files 
 * a C structure and its associated methods
 * memory allocation on the heap
 * a custom make file to compile it

Files

   readme.txt        this overview
   jims_matrix.h     header file, i.e. interface declarations
   jims_matrix.c     code implementing matrix functions
   test.c            main program that tests the jims_matrix library
   Makefile          compilation recipe

Compiling it

   $ gcc -c test.c -o test.o                # compile test.c to test.o object
   $ gcc -c jims_matrix.c -o jims_matrix.o  # compile jims_matrix.c
   $ gcc test.o jims_matrix.o -o test       # link 'em to make executable

   or just use the Makefile to do it for you

   $ make

Running it

   $ ./test
   testing jims_matrix stuff

   The original matrix :
      1.00  2.00  3.00 
      0.00  0.50  0.80 
     20.00 25.00 35.50 

   The transposed matrix :
      1.00  0.00 20.00 
      2.00  0.50 25.00 
      3.00  0.80 35.50 

   So there.