Unicode: 002A. Raw operator. Equivalent to the ordinary ASCII character with code 42. In addition to one-dimensional uses, x^* is by default interpreted as SuperStar[x]. x^* ...

Unicode: 21B5. Alias: Esc ret Esc. Letter-like form. Representation of the return or newline character on a keyboard. Used in showing how textual input is typed.

Unicode: F51F. Alias: Esc :> Esc. Infix operator with built-in evaluation rules. x  y is by default interpreted as x:>y or RuleDelayed[x,y]. x  y  z groups as x  (y  z).

Unicode: 266F. Letter-like form. Used to denote musical notes. Sometimes used in mathematical notation, typically to indicate some form of numbering or indexing. Not the same ...

Unicode: 221A. Alias: Esc sqrt Esc. Prefix operator with built-in evaluation rules. √ x is by default interpreted as Sqrt[x]. Ctrl+@, Ctrl+2 or ∖@ yields a complete SqrtBox ...

Unicode: 2248. Alias: Esc ~~ Esc. Infix similarity operator. x ≈ y is by default interpreted as TildeTilde[x,y]. Used for various notions of approximate or asymptotic ...

ListStreamPlot[array] generates a stream plot from an array of vector field values.ListStreamPlot[{{{x_1, y_1}, {vx_1, vy_1}}, ...}] generates a stream plot from vector field ...

Mathematica provides convenient functions and algorithms for manipulating colors in images, with full generality for arbitrary numbers of color channels.

Unevaluated[expr] represents the unevaluated form of expr when it appears as the argument to a function.

Binarize[image] creates a binary image from image by replacing all values above a globally determined threshold with 1 and others with 0.Binarize[image, t] creates a binary ...