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Print

Print

Print[expr]

prints expr as output.

Details

In a notebook, Print generates a cell with style "Print".
Print can print any expression, including graphics and dynamic objects.
Print[expr₁,expr₂,…] prints expr_i concatenated together, effectively using Row. »
With a text‐based interface, Print ends its output with a single newline (line feed).
You can arrange to have expressions on several lines by using Column. »
Print sends its output to the channel $Output.
Print uses the format type of $Output as its default format type.

Examples

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Basic Examples (2)

Print x+y, then print a+b:

Wolfram Language code: Print[x + y];Print[a + b]

Print the first 5 primes:

Wolfram Language code: Do[Print[Prime[n]], {n, 5}]

Scope (8)

Print graphics:

Wolfram Language code: Print[Graphics[Circle[]]]

Wolfram Language code: Print[Graphics3D[Sphere[]]]

Print a column of expressions:

Wolfram Language code: Print[Column[{x, aaa, z}]]

Print normally prints in StandardForm, so strings do not have quotes:

Wolfram Language code: Print["this is a string"]

Print in InputForm:

Wolfram Language code: Print[InputForm["this is a string"]]

Print in TraditionalForm:

Wolfram Language code: Print[TraditionalForm[Integrate[1 / (x ^ 3 - 1), x]]]

Print in a specified style:

Wolfram Language code: Print[Style[aaa, 18, Red]]

Print active controls:

Wolfram Language code: Print[Slider[]];Print[InputField[]]

Print a button:

Wolfram Language code: Print[PasteButton["xyz"]]

Print several expressions concatenated together:

Wolfram Language code: Print[x ^ 2, "=", 12434]

Applications (2)

Print Mersenne primes as soon as they are found:

Wolfram Language code: Do[If[PrimeQ[2 ^ n - 1], Print[n]], {n, 50, 100}]

Print a sequence of graphics:

Wolfram Language code: Do[Print[Graphics[Disk[], ImageSize -> 10n]], {n, 3}]

Properties & Relations (2)

The actual expression returned by Print is Null:

Wolfram Language code: Print[x]//InputForm

Print accepts any number of arguments; if zero are given, a blank line or cell is printed:

Wolfram Language code: Print[]

Compare with a row that has no elements:

Wolfram Language code: Row[{}]

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