词汇 | extremum |
释义 | BETA Examples of extremumextremum isn’t in the Cambridge Dictionary yet. You can help! Observation 3 shows that weak superiority cannot obtain between the extrema of a finite sequence without setting in at some point in that sequence. The result is shown to be a scheme which is uniformly second-order accurate wherever the solution is smooth, including extrema and sonic points. Information of another type is used in extremum inverse source problems. If no new extrema have appeared and no old ones have disappeared, no change needs to be made in the structure of the segments. Figure 5 shows typical surveys at constant frequency exhibiting extrema in the amplitude variation. Also, the position of the extremum is displaced outwards. Note that the second term in the expansion is zero because of the condition of the extremum imposed by (3.13). These times were chosen so that both downstream extrema are aligned. With faster rotation vortex separation (stall), which is defined by the first occurrence of a vorticity extremum inside the fluid, is delayed. Note also that a given point lies above (below) the horizontal axis if the positive (negative) extremum in v occurs first in time. More precisely, it relies on the fact that the distance between extrema decreases at each recursive step. We have chosen to include only the extrema of their figures for clarity. If a new extremum is created the polynomial with the next steepest gradient is considered, and so on. Especially, it is worth noting that the time intervals between extrema are quite even, and are very close to the period of forcing. However, from the calculated vorticity field (see figure 12), we know that local vorticity extrema are present at, and downstream of, the impingement region. In between these two extrema, it produces small quantitative deviations, which decrease with increasing amplitude. |
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