HeavisidePi[x] represents the box distribution \[CapitalPi](x), equal to 1 for |x| < 1/2 and 0 for |x| > 1/2.HeavisidePi[x_1, x_2, ...] represents the multidimensional box ...
Offset
(Built-in Mathematica Symbol) Offset[{dx, dy}, position] gives the position of a graphical object obtained by starting at the specified position and then moving by absolute offset {dx, dy}.
PrimePi
(Built-in Mathematica Symbol) PrimePi[x] gives the number of primes \[Pi] (x) less than or equal to x.
DiscretePlot3D[expr, {i, i_min, i_max}, {j, j_min, j_max}] generates a plot of the values of expr when i runs from i_min to i_max and j runs from j_min to ...
GeneralizedVariance[matrix] gives the generalized variance for matrix.
EuclideanDistance[u, v] gives the Euclidean distance between vectors u and v.
IsomorphicGraphQ[g_1, g_2] yields True if the graphs g_1 and g_2 are isomorphic, and False otherwise.
GroupOrbits[group, {p_1, ...}] returns the orbits of the points p_i under the action of the elements of group.GroupOrbits[group, {p_1, ...}, f] finds the orbits under the ...
InverseFourier[list] finds the discrete inverse Fourier transform of a list of complex numbers.
Limit
(Built-in Mathematica Symbol) Limit[expr, x -> x_0] finds the limiting value of expr when x approaches x_0.