.\" SCCSID: @(#)intro.3m	8.1	9/11/90.TH intro 3m.SH Nameintro \- introduction to mathematical library functions.SH Description.NXR "intro(3m) keyword".NXS "math library" "libm library".NXR "libm library" "introduction"These functions constitute the math library,.I libm.They are automatically loaded as needed by the FORTRAN compiler.MS f77 1 .The link editor searches this library under the \*(lq\-lm\*(rq option.Declarations for these functions may be obtained from the include file.RI <math.h>..NT "VAX Only"				On VAX machines, the GFLOAT version of.IR libmis used when you use the.MS ld 1command with the  .B lcgoption. Note that you must use the GFLOAT version of.IR libmwith modules compiled using the.MS cc 1with the .B \-Mgoption. .sp Also on VAX machines, note that neither the compiler nor the linker.MS ld 1can detect when mixed double floating pointtypes are used, and the program may produceerroneous results if this occurs..NE.SH System V CompatibilityThis library contains System V compatibility featuresthat are available to general ULTRIX programs.  For a discussionof how these features are documented, and how to specify thatthe System V environment is to be used in compiling and linkingyour programs,see.MS intro 3 ..SH Files.nf/usr/lib/libma/usr/lib/libmg.a  (VAX only).fi