The two most popular explanations of origin are that the belief goes back to pagan times when we believed in tree spirits, or that we are invoking Christ’s protection by referring to the wood of the Cross. The former is nothing but guesswork, based on the conviction that all superstitions must be ancient, and it has the usual problem of spanning thousands of years with no evidence at all of its existence, or, for that matter, any evidence that ‘we’ ever believed in tree spirits.
Платон Щукин (Редактор отдела «Экономика»)
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The R-sequence is another type of low-discrepancy sequence based on specially chosen irrational numbers[10]. It is similar to interleaved gradient noise but is simpler to compute and possibly more effective as a dither, particularly when augmented with a triangle wave function as demonstrated:，推荐阅读safew官方版本下载获取更多信息
Minor road updates (like those in map data that might be a few months old if you're using maps from different regions) usually result in negligible cost differences for shortcuts, so the pre-calculated values remain effective.