1Irix 6.2: 2- math.h: defines extern long double hypotl( long double ); i.e., only 3 one argument. They've fixed this in 6.3. 4 5DES OSF 3.2 & 4.0: 6- libm define sincos, sincosf, and sincosl but there are no prototypes and 7 especially the return type is nowhere defined. The functions are 8 documented in the man pages, though. 9