Where, Def
Synopsis
#include <flint/fexpr_builtin.h>WhereDefWhere(f(x), Def(x, a)) defines x as an alias for a within f(x), so that it is equivalent to f(a); it renders as Where(f(x), Def(x, a)) (f(x)\; \text{ where } x = a). Def(f(t), a) defines f as a function of the dummy variable t, and Def(Tuple(a, b), T) destructures a tuple. A Where expression may contain several definitions. Def occurs only inside Where.
Cite this page
The FLINT team, “Where, Def (fexpr_builtin.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fexpr_builtin/Where.html (generated 2026-10-20).
@misc{flint-doc-fexpr-builtin-Where,
author = {{The FLINT team}},
title = {{Where, Def (fexpr\_builtin.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/fexpr_builtin/Where.html},
note = {Generated 2026-10-20}
}