相较之下,美元和商品的平均表现相对更优:事件发生初期,美元指数上涨概率为67%;地缘局势恶化往往带来原油供给冲击,因此WTI原油涨幅中位数为3.2%、上涨概率为67%。
The false positives at the bottom
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For the Poincaré half-space model in dimension 2, the metric evaluates on the coordinate tangent vectors \(\frac{\partial}{\partial x}, \frac{\partial}{\partial y} \in T_pM\) as \[g_p\!\left(\frac{\partial}{\partial x^i}\bigg|_p,\;\frac{\partial}{\partial x^j}\bigg|_p\right) = \frac{1}{y^2}\,\delta_{ij},\] i.e. the coordinate tangent vectors are orthogonal and each has length \(\frac{1}{y}\) — shrinking to zero as \(p\) approaches the boundary \(y\to 0\), which is what makes the space “infinitely large” near the boundary.
(assert (not (str.in.re w (re.from_ecma2020 {REGEX}))))