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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.
。业内人士推荐新收录的资料作为进阶阅读
Маргарита Щигарева
Amdahl's law orchestration. The orchestrator prioritizes by impact. A 1.5x speedup on a 60% kernel (1.25x end-to-end) beats a 3x speedup on a 5% kernel (1.03x end-to-end). It moves on when diminishing returns set in.
。业内人士推荐新收录的资料作为进阶阅读
There's a great new portable power station deal at Amazon right now, so if you've been looking for a powerful, reliable backup solution, go check out the EcoFlow Delta 2 Max. As of March 11, this unit is down to its lowest-ever price at Amazon, now $848.99 down from $1,399. That's a saving of $550 on list price.
QueueThroughputBenchmark.MessageBusPublishThenDrain，更多细节参见新收录的资料