ToCharacterCode["string"] gives a list of the integer codes corresponding to the characters in a string. ToCharacterCode["string", " encoding"] gives integer codes according ...
TriangularDistribution[{min, max}] represents a symmetric triangular statistical distribution giving values between min and max. TriangularDistribution[{min, max}, c] ...
SmoothDensityHistogram[{{x_1, y_1}, {x_2, y_2}, ...}] plots a smooth kernel histogram of the values {x_i, y_i}.SmoothDensityHistogram[{{x_1, y_1}, {x_2, y_2}, ...}, espec] ...
JacobiDS[u, m] gives the Jacobi elliptic function ds(u | m).
JacobiSD[u, m] gives the Jacobi elliptic function sd(u | m).
CompleteBinaryTree[n] returns a complete binary tree on n vertices.
CompleteKaryTree[n, k] returns a complete k-ary tree on n vertices.
RandomTree[n] constructs a random labeled tree on n vertices.
RankGraph[g, l] partitions the vertices into classes based on the shortest geodesic distance to a member of list l.
Throughout Mathematica there is support not only for approximate real numbers, but also for exact numbers represented in algebraic or symbolic form. Functions like Floor, ...