anchor.diff:          "XOR"]
   
       let ArityAtLeast1FunctionName: P<string> = ArityAtLeastNFunctionNameMaker 1 ["AND"; "AVEDEV"; "AVERAGE"; "AVERAGEA";
  -        "CALL"; "CONCAT"; "CONCATENATE"; "COUNT"; "COUNTA"; "CUBEVALUE"; "DEVSQ"; ]
  -    let ArityAtLeast2FunctionName: P<string> = ArityAtLeastNFunctionNameMaker 2 ["CHOOSE"; "COUNTIFS";]
  +        "CALL"; "CONCAT"; "CONCATENATE"; "COUNT"; "COUNTA"; "CUBEVALUE"; "DEVSQ"; "GCD"; "GEOMEAN"; ]
  +    let ArityAtLeast2FunctionName: P<string> = ArityAtLeastNFunctionNameMaker 2 ["CHOOSE"; "COUNTIFS"; "GETPIVOTDATA"; ]
       let ArityAtLeast3FunctionName: P<string> = ArityAtLeastNFunctionNameMaker 3 ["AGGREGATE"; "AVERAGEIFS";]
   
       let VarArgsFunctionName: P<string> =
  
positive.code:         "CHISQ.DIST.RT"; "CHISQ.TEST"; "COMBIN"; "COMBINA"; "COMPLEX"; "COUNTIF"; "COVAR"; "COVARIANCE.P"; "COVARIANCE.S"; "CUBEMEMBER"; "CUBERANKEDMEMBER";
          "CUBESET"; "DATEVALUE"; "DAYS"; "DAYS360"; "DEC2BIN"; "DEC2HEX"; "DEC2OCT"; "DECIMAL"; "DELTA"; "DOLLAR"; "DOLLARDE"; "DOLLARFR"; "EDATE"; "EFFECT";
          "EOMONTH"; "ERF"; "EXACT"; "F.DIST"; "FILTERXML"; "FIND"; "FINDB"; "FIXED"; "FLOOR"; "FLOOR.PRECISE"; "FORECAST.ETS.SEASONALITY"; "FREQUENCY"; "F.TEST";
          "FTEST"; "FVSCHEDULE";
          "INDEX"; "LOOKUP"; "MATCH";
          "MEDIAN"; "MODE.MULT"; "MAX"; "MAXA"; "MODE.SNGL"; "MIN"; "MINA"; "MMULT"; "MOD"; "MODE"; "MONTH"; "MROUND"; "MULTINOMIAL";    
          "NETWORKDAYS.INTL"; "NETWORKDAYS"; "NOMINAL"; "NORM.S.DIST"; "NPV"; "NUMBERVALUE"; 
  
negative.code:         "COUPNUM"; "COUPPCD"; "CRITBINOM"; "CUBEKPIMEMBER"; "CUBEMEMBER"; "CUBEMEMBERPROPERTY"; "CUBERANKEDMEMBER"; "CUBESET";
          "DATE"; "DATEDIF"; "DAVERAGE"; "DAYS360"; "DCOUNT"; "DCOUNTA"; "DGET"; "DMAX"; "DMIN"; "DPRODUCT"; "DSTDEV"; "DSTDEVP"; "DSUM"; "DVAR"; "DVARP"; "EXPON.DIST";
          "EXPONDIST"; "FDIST"; "F.DIST.RT"; "FIND"; "FINDB";"F.INV"; "F.INV.RT"; "FINV"; "FIXED"; "FLOOR.MATH"; "FORECAST"; "FORECAST.ETS"; "FORECAST.ETS.SEASONALITY";
          "FORECAST.LINEAR"; "FORECAST.ETS.CONFINT"; "FORECAST.ETS.STAT"; "FV"; "GAMMA.INV"; "GAMMAINV"; "GROWTH";
          "IF"; "INDEX"; "LOOKUP"; "MATCH";
          "MEDIAN"; "MIRR"; "MODE.MULT"; "MAX"; "MAXA"; "MAXIFS"; "MID"; "MIDB"; "MODE.SNGL"; "MIN"; "MINIFS"; "MINA"; "MODE"; "MULTINOMIAL";
          "NEGBINOMDIST"; "NETWORKDAYS"; "NETWORKDAYS.INTL"; "NORM.INV"; "NORMINV"; "NPER"; "NPV"; "NUMBERVALUE"; 
  