.xx "abort" "generate an IOT fault"
.xx "abs, fabs" "absolute value"
.xx "alloc, free" "core allocator"
.xx "atan, atan2" "arc tangent function"
.xx "atof" "convert ASCII to floating"
.xx "atoi" "convert ASCII to integer"
.xx "crypt" "password encoding"
.xx "ctime, ijtime" "convert date and time to ASCII"
.xx "ecvt, fcvt" "output conversion"
.xx "end, etext, edata" "last locations in program"
.xx "envsave, envrest" "execute non-local goto"
.xx "exp" "exponential function"
.xx "floor, ceil" "floor and ceiling functions"
.xx "fmod" "floating modulo function"
.xx "fptrap" "floating point interpreter"
.xx "gamma" "log gamma function"
.xx "getarg, iargc" "get command arguments from Fortran"
.xx "getc, getw, fopen" "buffered input"
.xx "getchar" "read character"
.xx "getpw" "get name from UID"
.xx "hmul" "high-order product"
.xx "ierror" "catch Fortran errors"
.xx "ldiv, lrem" "long division"
.xx "locv" "long output conversion"
.xx "log" "natural logarithm"
.xx "mktemp" "create temporary file name"
.xx "monitor" "prepare execution profile"
.xx "nargs" "argument count"
.xx "nlist" "get entries from name list"
.xx "perror, sys\*_errlist, sys\*_nerr, errno" "system error messages"
.xx "pow" "floating exponentiation"
.xx "printf" "formatted print"
.xx "prints" "print string"
.xx "putc, putw, fcreat, fflush" "buffered output"
.xx "putchar, flush" "write character"
.xx "qsort" "quicker sort"
.xx "rand, srand" "random number generator"
.xx "reset, setexit" "execute non-local goto"
.xx "setfil" "specify Fortran file name"
.xx "sin, cos" "trigonometric functions"
.xx "skill" "send a signal to a set of processes"
.xx "sqrt" "square root function"
.xx "ttyn" "return name of current typewriter"
