Date: Sun, 14 Jan 96 01:32:01 MST To: djgpp AT sun DOT soe DOT clarkson DOT edu From: enoch AT terranet DOT terranet DOT ab DOT ca (Peter Plum) Subject: Peter: again!! Undefined reference to 'sin' this time. Here we go again! I get this message: GNU C++ Compile: SINE.c -lpc SINE.c(.text+0x32): undefined reference to `sin' ... when I compile this program: #include #include main () { float d = 40.05; float n ; n = sin( d ) ; printf("The sine of %f is %f", d, n); return(0); } ...I even tried using -lmath in the command line. Why Oh why does this happen? Doesn't "#include " define a reference to 'sin'? TC Lite handles it just fine. Thanks again for the help. "In Him was life, and His life is the light of men He came unto His own but His own received Him not but He gave power to as many as would receive Him to become the sons of God!" Peter Plum RR1 Site10 Box 10 Grande Prairie. AB T8V 2Z8 403 538 4713