Snowflake (heraldry) important winter sport ("e.g." Saalbach-Hinterglemm, Austria, together with a pair of skis). The tincture is often argent (silver). Snowflake (heraldry) The snowflake or "snow crystal", is a charge in heraldry. The display in coats of arms is following a strictly stylized form of the natural six pointed crystal form of a snowflake. In older heraldic literature, this charge is not to be seen. In modern heraldry, the snowflake is most used in northern Europe, in arms in Sweden, Norway and Finland, where it alludes to the meteorological features of the lands. Otherwise, it also is a symbol for winter, and
Integer points in convex polyhedra Integer points in convex polyhedra The study of integer points in convex polyhedra is motivated by questions such as "how many nonnegative integer-valued solutions does a system of linear equations with nonnegative coefficients have" or "how many solutions does an integer linear program have". Counting integer points in polyhedra or other questions about them arise in representation theory, commutative algebra, algebraic geometry, statistics, and computer science. The set of integer points, or, more generally, the set of points of an affine lattice, in a polyhedron is called Z-polyhedron, from the mathematical notation formula_1 or Z for the set of integer