bc@uxa.cso.uiuc.edu (Ben Cox) (01/03/91)
xialin@umd5.umd.edu (Xia Lin) writes: >I would like to use some math functions in <math.h> in my C program (in unix). > The compiler keeps telling me that "undefined: _exp, _sqrt", even though I > have included a "#include <math.h>" statement at the begining of my program. >What did I do wrong? Do I need to use some compiler options like "cc -?" for using library functions? >Thanks in advance for any helps. cc foo.c -lm ^^^ This is the important part -- link in the math library. -- -- Ben Cox bc@uxa.cso.uiuc.edu