File list (Check if you may need any files):
MATH\DIV_REM.C
....\FREXP.C
....\INT_FRAC.C
....\LDEXP.C
....\LOG_10.C
....\MAP_RAND.C
....\MATHERR.C
....\MIN_MAX.C
....\POW10.C
....\RANDOM.C
....\RANDSEED.C
....\SHOWACOS.C
....\SHOWASIN.C
....\SHOWATAN.C
....\SHOWCABS.C
....\SHOWCEIL.C
....\SHOWCOSH.C
....\SHOWFABS.C
....\SHOWFMOD.C
....\SHOWSINH.C
....\SHOW_ABS.C
....\SHOW_COS.C
....\SHOW_EXP.C
....\SHOW_LOG.C
....\SHOW_POW.C
....\SHOW_SIN.C
....\SHOW_TAN.C
....\SQRT.C
MATH
ADVANCED\1_10LIST.BAK
........\1_10LIST.C
........\BLD_1_10.BAK
........\BLD_1_10.C
........\CHILD.C
........\CHK_MATH.C
........\COMPACT.C
........\COUNTDOS.BAK
........\COUNTDOS.C
........\CTRLBRK.BAK
........\CTRLBRK.C
........\CTYPE.C
........\DBL_1_10.BAK
........\DBL_1_10.C
........\ERR_MSG.C
........\ERSIMPLE.BAK
........\ERSIMPLE.C
........\EXECL.C
........\EXECLPE.C
........\EXECVPE.C
........\FASTCALL.BAK
........\FASTCALL.C
........\FILELIST.C
........\GENINTR.C
........\GETPID.C
........\GET_VECT.C
........\LONGJMP.C
........\NOPRTSCR.C
........\OS_VER.C
........\PSP_ADDR.C
........\REMOVE5.C
........\REMOVE_7.C
........\SETENUM.C
........\SHOWENUM.C
........\SORTLIST.C
........\SPAWNL.C
........\SPAWNLXX.C
........\SPAWNVXX.C
........\SYSTEM.C
........\TENTATVE.C
........\TIMER.C
........\WHICHDAY.C
ADVANCED
.RRAYS\5_CONST.BAK
......\5_CONST.C
......\5_VALUES.C
......\ADDRESS.C
......\ARRAYADD.C
......\ARRAYSIZ.C
......\ARRAYTWO.C
......\ARRFUNCT.C
......\ARRPARAM.C
......\BINARY.C
......\BSEARCH.C
......\BUBBLE.C
......\CHGSTRUC.C
......\CHMEMBER.C
......\DOSDATE.C
......\ELEMENTS.C
......\FUNCT_2D.C
......\GET_VERH.C
......\GET_VERX.C
......\HUGE_FLT.C
......\INITSTRU.C
......\LFIND.C
......\LSEARCH.C
......\MD_SIZE.C
......\NUM_ELS.C
......\PASSFUNC.C
......\PTRARRAY.C
......\PTRTOPTR.C