FormBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2} is an option for cells that specifies settings for FormBox objects within the cell.
For
(Built-in Mathematica Symbol) For[start, test, incr, body] executes start, then repeatedly evaluates body and incr until test fails to give True.
ForwardBackward is a symbol that represents alternate forward and backward motion or animation.
Forward
(Built-in Mathematica Symbol) Forward is a symbol that represents the forward direction for purposes of motion and animation.
FourierCoefficient[expr, t, n] gives the n\[Null]^th coefficient in the Fourier series expansion of expr.FourierCoefficient[expr, {t_1, t_2, ...}, {n_1, n_2, ...}] gives a ...
FourierCosCoefficient[expr, t, n] gives the n\[Null]^th coefficient in the Fourier cosine series expansion of expr.FourierCosCoefficient[expr, {t_1, t_2, ...}, {n_1, n_2, ...
FourierCosSeries[expr, t, n] gives the n\[Null]^th-order Fourier cosine series expansion of expr in t.FourierCosSeries[expr, {t_1, t_2, ...}, {n_1, n_2, ...}] gives the ...
Fourier
(Built-in Mathematica Symbol) Fourier[list] finds the discrete Fourier transform of a list of complex numbers.
FourierParameters is an option to Fourier and related functions that specifies the conventions to use in computing Fourier transforms.
FourierSequenceTransform[expr, n, \[Omega]] gives the Fourier sequence transform of expr.FourierSequenceTransform[expr, {n_1, n_2, ...}, {\[Omega]_1, \[Omega]_2, ...}] gives ...