Print¶

Status: Stable

documented, exercised by the test suite and/or worked examples, with no known limitations recorded.

Description¶

Print[expr1, expr2, ...]

prints each argument to stdout, concatenated without separator and followed by a newline, and returns Null. Arguments are formatted in the default output form (matching the REPL's Out display).

Examples (5)¶

Every input below was run against the current Mathilda build and its output recorded.

Basic examples (2)¶

In[1]:= Print["Result: ", x + y] Result: x + y
Out[1]= Optional[Null Result, x + y]

In[2]:= Print[x + y // FullForm] Plus[x, y]
Out[2]= Null (x + y)

Applications (3)¶

In[3]:= Print["Hello, Mathilda!"]

In[4]:= Print[2 + 3]

In[5]:= Print["x = ", 2^10]

Implementation notes¶

builtin_print (src/print.c) calls print_standard on each argument in turn (no separators), emits a trailing newline, and returns the symbol Null.

Attributes: Protected.

References¶

See also: FullForm, InputForm

Source: src/print.c
Specification: docs/spec/builtins/expression-information.md
Tests: tests/test_print.c
Tests: tests/test_time_constrained.c

Notes & additional examples¶

Notes¶

Print writes its evaluated arguments to stdout, concatenated with no separator, then returns Null. String arguments are printed with their surrounding quotes.