org.apache.poi.ss.formula.functions
Interfaces 
FreeRefFunction
Function
Function0Arg
Function1Arg
Function2Arg
Function3Arg
Function4Arg
XYNumericFunction.Accumulator
Classes 
Address
AggregateFunction
BooleanFunction
CalendarFieldFunction
Choose
Code
Column
Columns
Complex
Count
Counta
Countblank
Countif
Countif.StringMatcher
DateFunc
Days360
Dec2Hex
Delta
EDate
Errortype
Even
Finance
FinanceFunction
FinanceLib
Fixed0ArgFunction
Fixed1ArgFunction
Fixed2ArgFunction
Fixed3ArgFunction
Fixed4ArgFunction
Hlookup
Hyperlink
IfFunc
Index
Indirect
Intercept
IPMT
Irr
LinearRegressionFunction
LogicalFunction
Lookup
Match
MinaMaxa
Mode
MultiOperandNumericFunction
Na
NotImplementedFunction
Now
Npv
NumericFunction
NumericFunction.OneArg
NumericFunction.TwoArg
Odd
Offset
PPMT
Quotient
Rank
Rate
Replace
Rept
RowFunc
Rows
Slope
Substitute
Subtotal
Sumif
Sumifs
Sumproduct
Sumx2my2
Sumx2py2
Sumxmy2
T
TextFunction
TimeFunc
Today
Value
Vlookup
WeekdayFunc
XYNumericFunction
Enums 
LinearRegressionFunction.FUNCTION