On 25 April 2011 15:35, wayne schlemitz wrote: > Dear Sir: > > I am using suse 10 writing a c program that should use exp() or pow() from the math.h library after checking the library the math.h seems to be missing these functions. Is this header part of gcc or from the distribution? If I need a math .h header file where can I obtain one to install to correct this problem? The header is part of the C library not GCC, but are you sure those functions are missing? They might not be declared in math.h itself, they might be in some other header included by math.h, such as bits/mathcalls.h