[bingl@durian ex1]$ gcc -c xfrpr.c
[bingl@durian ex1]$ gcc xfrpr.o -lm -lrecipes_c -o xfrpr
[bingl@durian ex1]$ ./xfrpr

Minimum of a 2-d quadratic centered
at (1.0,3.0). 
        x            y functin value 
    1.000000     3.000000     0.000000
iteration = 4