index
                    Index
SYMBOL
! (factorial) operator 
→ symbol 
*row( function 
*row+( function 
± symbol 
– (negative symbol) 
= sign 
√ symbol 
χ2cdf( function, 2nd 
ΔList( function, 2nd 
ΔTbl value 
ΣInt function 
ΣPrn function 
1-Var Stats/2-Var Stats tools
  overview
  set of heights example
  car efficiencies example 
2D (two-dimensional) grids. 
    See matrices. 
2D (two-dimensional) plane 
2nd modifier key