FullSimplify[expr] tries a wide range of transformations on expr involving elementary and special functions, and returns the simplest form it finds. FullSimplify[expr, assum] ...
Power
(Built-in Mathematica Symbol) x^y gives x to the power y.
ProductLog[z] gives the principal solution for w in z == w e^w. ProductLog[k, z] gives the k\[Null]^th solution.
ToPackedArray[expr] uses packed arrays if possible in the internal representation of expr.
EconomizedRationalApproximation[expr, {x, {x_0, x_1}, m, n}] gives the economized rational approximation to expr that is good over the interval x_0 to x_1, with numerator ...
I
(Built-in Mathematica Symbol) I represents the imaginary unit Sqrt[-1].
Integer
(Built-in Mathematica Symbol) Integer is the head used for integers.
InverseFunctions is an option for Solve and related functions that specifies whether inverse functions should be used.
Log10
(Built-in Mathematica Symbol) Log10[x] gives the base-10 logarithm of x.
Piecewise[{{val_1, cond_1}, {val_2, cond_2}, ...}] represents a piecewise function with values val_i in the regions defined by the conditions cond_i. Piecewise[{{val_1, ...