SpellingOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for notebooks that specifies settings for spell checking.
SubscriptBox[x, y] is the low-level box representation for x_y in notebook expressions.
Subscript[x, y] is an object that formats as x_y. Subscript[x, y_1, y_2, ...] formats as x Subscript[y, 1], Subscript[y, 2], ....
SuperscriptBox[x, y] is the low-level box representation for x^y in notebook expressions.
ToCharacterCode["string"] gives a list of the integer codes corresponding to the characters in a string. ToCharacterCode["string", " encoding"] gives integer codes according ...
TopologicalSort[g] gives a list of vertices of g in topologically sorted order for a directed acyclic graph g.
UnderscriptBox[x, y] is the low-level box representation for UnderscriptBox[x, y] in notebook expressions.
ViewVector is an option for Graphics3D and related functions which specifies the position and direction of a simulated camera used to view three-dimensional objects.
A Bernoulli equation is a first-order equation of the form The problem of solving equations of this type was posed by James Bernoulli in 1695. A year later, in 1696, G. ...
Basic Plotting Options for Graphics Redrawing and Combining Plots