| 摘要 |
Random number generators are provided in the form of one or more ten-sided dice, made up of two, identical, regular, five-sided pyramids with planar bases face to face. The faces of each die on opposite sides of the equatorial plane defined by the bases are offset 36 DEG from one another. The equatorial plane is perpendicular to a central axis extending through the apexes of the pyramids and bounded by a circle. The surface of the die immediately contiguous the equatorial plane is formed by a convex surface of revolution of an arc of finite radius, symmetrical with respect to the plane, about the axis.
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