NyquistGridLines is an option to NyquistPlot that specifies contours of constant magnitude and phase of a closed-loop system.

Overlay[{expr_1, expr_2, ...}] displays as an overlay of all the expr_i.Overlay[{expr_1, expr_2, ...}, {i, j, ...}] displays as an overlay of expr_i, expr_j, ...

Padding is an option to various array and image operations that specifies what padding to use when extending beyond the original data specified.

PlayRange is an option for Play and related functions which specifies what range of sound amplitude levels should be included.

PolynomialQ[expr, var] yields True if expr is a polynomial in var, and yields False otherwise. PolynomialQ[expr, {var_1, ...}] tests whether expr is a polynomial in the var_i.

PrivatePaths -> {opt_1 -> val_1, opt_2 -> val_2, ...} is a global option that specifies settings for paths private to the notebook front end.

Resampling is an option that specifies the method to be used for resampling images.

RowLines is an option for the low-level function GridBox that specifies whether lines should be drawn between adjacent rows.

RowsEqual is an option for the low-level function GridBox that specifies whether all rows in the grid should be assigned equal total height.

RowSpacings is an option for the low-level function GridBox that specifies the spaces in x heights that should be inserted between successive rows.