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- The implementation is based on a Newton Raphson's interactive procedure, with novel initial guesses to obtain improved convergence properties. 該模型的求解使用牛頓-拉夫遜迭代法實(shí)現,并采用一種新的初值設定方法以提高計算的收斂特性。
- The first restoration, J1 and P1, uses an undersized array, UNDERPSF, for an initial guess of the PSF. 闡明知道現實(shí)PSF尺寸的重要性,這個(gè)例子實(shí)施了重建。
- Two global convergence strategies of changing step are given to combined with G-N method that can perform the virtue of insensitiveness to initial guess in iteration algorithm. 給出了兩種變步長(cháng)全局收斂策略,與高斯-牛頓法相結合可得到對初值不敏感的迭代算法。
- Numerical results for two media with different properties show that the proposed initial guesses improve computational efficiency and reduce the influence of nonlinear solver on the time step as well. 對兩種不同性質(zhì)的介質(zhì)進(jìn)行數值實(shí)驗,結果表明,所設計的初值選取方法不僅大大提高了計算效率,而且能夠降低非線(xiàn)性解法器對時(shí)間步長(cháng)的影響。
- For the purpose of iterative efficiency and practicality, Fletcher-Reeves conjugate gradient method is modified by the application of re-beginning technique, FFT algorithm and construction of initial guess. 為提高計算效率和工程實(shí)用性;對Fletcher-Reeves共軛梯度法采取再開(kāi)始技術(shù)、FFT算法和構造迭代初值等改進(jìn)措施.
- The worker fixed a bracket on the wall. 工人在墻上固定了一個(gè)支架。
- As to the author of the book, I will hazard a guess. 關(guān)於這本書(shū)的作者,我來(lái)試猜一下。
- Their incomes are brought into a higher bracket. 他們的收入已進(jìn)入一個(gè)較高的等級段。
- This book is written for the 10-to-11 age bracket. 這本書(shū)是為十到十一歲年齡層的孩子寫(xiě)的。
- When do you guess the airplane will take off? 你猜飛機何時(shí)要起飛?
- I think you should bracket this word. 我認為你應該給這個(gè)字加上括號。
- I can't even guess at what he means. 他什么意思我連猜也猜不出。
- I guess I'd better start cramming. 我想我最好開(kāi)始狠補一通。
- Your guess only approximates to the facts. 你的猜測僅僅是接近事實(shí)。
- I guess ignorance must be a sin. 我認為無(wú)知是一種罪。
- I guess there are mice in the kitchen. 我猜想廚房里有老鼠。
- His initial reaction was one of shock. 他最初的反應是震驚。
- The scientists guess that Venus is lifeless. 科學(xué)家猜測在金星上沒(méi)有生命。
- The initial `h' in `hour' is not aspirated. hour一字中起首的h不發(fā)送氣音。
- I should guess his age at about 30. 我想他的年齡在30歲左右。