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When all the points P on one line are related by an isometry to all points P^' on another, the midpoints of the segments PP^' are either distinct and collinear or coincident.
A distribution with zero kurtosis excess, i.e., gamma_2=0.
A homogeneous polynomial in two or more variables.
If (sinalpha)/(sinbeta)=m/n, then (tan[1/2(alpha-beta)])/(tan[1/2(alpha+beta)])=(m-n)/(m+n).
In the American system, 10^(42).
A "law of large numbers" is one of several theorems expressing the idea that as the number of trials of a random process increases, the percentage difference between the ...
The problem of finding the mean triangle area of a triangle with vertices picked inside a triangle with unit area was proposed by Watson (1865) and solved by Sylvester. It ...
A hyperbolic version of the Euclidean cube.
A hyperbolic version of the Euclidean icosahedron.
A plane making equal angles with the three edges of a trihedron.
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