Hyperbolic geometry or hypercycle, then the triangle has no circumscribed circle. As in spherical and elliptical geometry, in hyperbolic geometry if two triangles are similar, they must be congruent. A special polygon in hyperbolic geometry is the regular apeirogon, a uniform polygon with an infinite number of sides. In Euclidean geometry, the only way to construct such a polygon is to make the side lengths tend to zero and the apeirogon is indistinguishable from a circle, or make the interior angles tend to 180 degrees and the apeirogon approaches a straight line. However, in hyperbolic geometry, a regular apeirogon has sides of
Basic symptoms of schizophrenia symptoms and brief transient psychosis, to detect at-risk mental states in help-seeking people. COPER criteria are met when at least 1 of the symptoms on the scale (see table below) is present with at least weekly occurrence in the last 3 months, and the first occurrence of symptoms was more than 12 months prior to evaluation. Below are the basic symptoms associated with psychosis, along with whether they appear on COGDIS, COPER, or both: The Examination of Anomalous Self-Experience (EASE) is another scale used to evaluate subjective symptoms of schizophrenia. This is a semi-structured interview scheme that was designed to