README

  This is the readme file for HW11:
  The program is used to find the solution of Ax=b using conjugate gradients algorithm.
  The i/o functions are in one file "myio.c".
  The conjugate gradient algorithm function is in the file "fcg.c"
  I use gsl_blas library to do the program
  the solution has been checked correctly!
  the test file is "SampleInput.txt"
Example to Use:
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[ydai@galois5 Robin_HW11]$ make clean
rm -f Robin_HW11
rm -f *.o
rm -f *~
[ydai@galois5 Robin_HW11]$ make
gcc -c -o robin.o robin.c
gcc -c -o fgc.o fgc.c
gcc -c -o myio.o myio.c
gcc --L/usr/local/lib -lgsl -lgslcblas -Os -o Robin_HW11 robin.o fgc.o myio.o
[ydai@galois5 Robin_HW11]$ ./Robin_HW11 <SampleInput
SampleInput: No such file or directory.
[ydai@galois5 Robin_HW11]$ ./Robin_HW11 < SampleInput.txt
the solution of the equation Ax=b is: 
0.640000
0.380000
0.120000
-0.140000
[ydai@galois5 Robin_HW11]$ ./Robin_HW11 < SampleInput.txt >out.txt
[ydai@galois5 Robin_HW11]$ 

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the solution above has been proved correctly!
the output is saved in the file "out.txt"

8/7/2009
Robin