OddQ¶

Status: Stable

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

Description¶

OddQ[n] gives True if n is an odd integer (Integer or BigInt), False otherwise.

Examples¶

No verified examples yet for this function.

Implementation notes¶

builtin_oddq (src/core.c) returns True for an EXPR_INTEGER with n % 2 != 0, uses mpz_odd_p for an EXPR_BIGINT, and returns False for everything else.

Attributes: Protected.

Implementation status¶

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

References¶

Source: src/core.c
Specification: docs/spec/builtins/expression-information.md

Notes & additional examples¶

Worked examples¶

In[1]:= OddQ[7]
Out[1]= True

In[2]:= OddQ[4]
Out[2]= False

Notes¶

OddQ returns True only for odd integers (Integer or BigInt); any non-integer argument gives False.