ExponentFunction is an option for NumberForm and related functions that determines the exponent to use in printing approximate real numbers.
ExponentialFamily is an option for GeneralizedLinearModelFit that specifies the exponential family for the model.
ExponentialGeneratingFunction[expr, n, x] gives the exponential generating function in x for the sequence whose n\[Null]^th term is given by the expression ...
ExponentialPowerDistribution[\[Kappa], \[Mu], \[Sigma]] represents an exponential power distribution with shape parameter \[Kappa], location parameter \[Mu], and scale ...
ExponentPosition is an option for RadicalBox that specifies the placement of the index outside a radical sign.
ExportAutoReplacements is an option for cells that specifies which replacement rules Mathematica automatically applies when exporting text.
Export
(Built-in Mathematica Symbol) Export["file. ext", expr] exports data to a file, converting it to the format corresponding to the file extension ext. Export[file, expr, " format"] exports data in the ...
ExpressionCell[expr] gives an expression cell that can appear in a Mathematica notebook. ExpressionCell[expr, " style"] gives an expression cell with the specified style.
Expression is a symbol that represents an ordinary Mathematica expression in Read and related functions.
ExpToTrig[expr] converts exponentials in expr to trigonometric functions.