SubtractFrom (Built-in Mathematica Symbol)

x -= dx subtracts dx from x and returns the new value of x.

SyntaxQ (Built-in Mathematica Symbol)

SyntaxQ["string"] returns True if the string corresponds to syntactically correct input for a single Mathematica expression, and returns False otherwise.

SystemOpen (Built-in Mathematica Symbol)

SystemOpen["target"] opens the specified file, URL, or other target with the associated program on your computer system.

TraceForward (Built-in Mathematica Symbol)

TraceForward is an option for Trace and related functions which specifies whether to include later expressions on the evaluation chain that contains the pattern form sought.

Transparent (Built-in Mathematica Symbol)

Transparent represents perfect transparency in graphics or style specifications.

Undefined (Built-in Mathematica Symbol)

Undefined is a symbol that represents a quantity with no defined value.

Underscript (Built-in Mathematica Symbol)

Underscript[x, y] is an object that formats as UnderscriptBox[x, y].

UnsameQ (Built-in Mathematica Symbol)

lhs =!= rhs yields True if the expression lhs is not identical to rhs, and yields False otherwise.

VectorDensityPlot (Built-in Mathematica Symbol)

VectorDensityPlot[{{v_x, v_y}, s}, {x, x_min, x_max}, {y, y_min, y_max}] generates a vector plot of the vector field {v_x, v_y} as a function of x and y, superimposed on a ...

VertexDelete (Built-in Mathematica Symbol)

VertexDelete[g, v] makes a graph by deleting the vertex \[Nu] and all edges connected to v from the graph g.VertexDelete[g, {v_1, v_2, ...}] deletes a collection of vertices ...