Date: Fri, 9 Apr 93 13:02:23 EDT From: DJ Delorie To: tesla AT lamar DOT colostate DOT edu Cc: djgpp AT sun DOT soe DOT clarkson DOT edu Subject: Re: Bessel functions in math.h > I'm writing a program in which I need to use bessel functions (jn(double,int)). > I don't need the accuracy of doubles, so I'm using floats... The compiler > can't find the linker can't find the function jn. I'm including math.h and > I'm linking libm.a. Could the problem be that, according to math.h the code > is actually C++ code and somehow the linker is looking for jn(float,int) > because of the way I've coded my program? More likely they're just not there because I never wrote them. Feel free to write your own and post them here and they'll get added to the official library later. Not everything in the include files is in the library, unfortunately. DJ