The distribution function of a distribution described by this term consists ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ of two parabolic arcs, and the probability density function of that distribution consists of two lines.
axter's four-coloring constant is given for a lattice described by this adjec- tive. The distribution function of a distribution described by this term consists ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ ￼ of two parabolic arcs, and the probability density function of that distribution consists of two lines. Matrices with the strict version of this property are nilpotent, and matrices described by this adjective have determinants equal to the product of the numbers on their diagonal. Numbers described by this ad- n+1  jective are of the form 2 , and are generated by adding all integers up to a certain point. For ten points, identify this adjective, which can also describe things which resemble 3-sided polygons. 
axter's four-coloring constant is given for a lattice described by this adjec- tive.
triangular [accept word forms]