an improved math learning tool

... 1 Giới thiệu phần mềm: Toolkit Math (Tên đầy đủ Toolkit for Interactive Mathematics (TIM) - công cụ tương tác học toán) phần mềm học toán đơn giản, ... thức : expand (3*x^2+x-1)+(4*x^2-4*x+5) Kết là: Ví dụ : Thực nhân đa thức : expand (x+1)*(x-1) Kết là: Thực lệnh Expand từ bảng chọn: Bước 1: Nháy chuột bảng chọn Algebra chọn Expand  xuất ... nâng cao: a Tính toán với đa thức: Em dùng lệnh : expand Ví dụ : Rút gọn đơn thức : x y.9 x y Nhập vào cửa sổ dòng lệnh: expand (2*x^2*y)*(9*x^3*y^2) Nhấn phím Enter : kết thể cửa...

Ngày tải lên: 29/11/2013, 11:11

... machines: an application to face detection,” in Proc of IEEE Conference on Computer Vision and Pattern Recognition, pp 130–136, San Juan, Puerto Rico, June 1997 [12] Y.-J Lee and O L Mangasarian, “RSVM: ... cases with many support An Improved Way to Make Large-Scale SVR Learning Practical vectors Therefore, for medium-size problems, standard SVR should be used, but for large problems, RSVR can effectively ... Proc 15th International Conference in Machine Learning, J Shavlik, Ed., pp 188–196, Morgan Kaufmann, San Francisco, Calif, USA, 1998 [7] A J Smola and B Sch¨ lkopf, “A tutorial on support vector...

Ngày tải lên: 23/06/2014, 01:20

... mengurangkan kejituan saluran dijangka Selanjutnya, penganggaran saluran ini kemudian digunakan untuk menguji kesan penganggaran pandu menggunakan teknik penganggaran yang berbeza seperti Ralat Ganda ... ketahanannya terhadap Gangguan Antara Simbol (ISI) pembangunan penerima cekap dengan teknik penganggaran saluran yang tepat sangat penting untuk memudahkan ramalan isyarat yang diterima Pemodulatan ... interpolasi yang lain dalam saluran pemudaran Rayleigh menggunakan penganggaran saluran jenis sikat Simulasi menunjukkan bahawa teknik interpolasi yang dicadangkan berupaya menganggarkan saluran jauh...

Ngày tải lên: 26/05/2013, 21:28

... present in any language learning program The enrichment part of a language curriculum must encompass these factors which encourage successful transfer and learning of the target language A language ... successful transfer of language learning (Finocchiaro, 1982; Ngeow, 1998) To foster positive attitudes and to motivate learning, in particular, the learning of English as a Second Language, an environment ... self-efficacy, and anxiety) Goals (perceived clarity and relevance of learning goals as reasons for learning) Involvement (i.e., extent to which the learner actively and consciously participates in the language...

Ngày tải lên: 06/09/2013, 10:10

... concepts and new wants when the human society develops In other words, vocabulary is a mean of transferring the information, opinion and feelings Vocabulary plays an important role in language learning ... Words and their meanings It is said that Language without meaning is meaningless to emphasize the importance of the meaning of language Words can be divided into two types: function words and content ... meanings For example: - Ugly - pretty - Mean - generous - Tidy - messy A polysemantic word may have an antonym (or several antonyms) for each of it meanings So, the adjective dull has the antonyms...

Ngày tải lên: 18/12/2013, 10:08

... Switzerland) LB (Luria–Bertani) medium was from Becton Dickinson (Basel, Switzerland) Generation of mutant libraries For the generation of the ribA mutant library, the plasmid pQE60-ribANhis (Table ... structure and mechanism J Biol Chem 280, 36912– 36919 23 Picollelli MA, Viitanen PV & Jordan DB (2000) Spectrophotometric determination of 3, 4-dihydroxy-2butanone-4-phosphate synthase activity Anal ... the gene mutations of the most improved mutant genes A#1 G2 (T203S, A290T, A296T) and A#4 C9 (K195T, V264A, V275A, K397E) did not result in a further improved mutant Numbering of the amino acid...

Ngày tải lên: 18/02/2014, 11:20

... rules For instance, proper names and pronouns (which the ERG analyses as scopebearers, although they can be reduced to constants without scope) can be permuted with anything Indefinites and definites ... recursion semantics: An introduction Journal of Language and Computation To appear M Egg, A Koller, and J Niehren 2001 The Constraint Language for Lambda Structures Logic, Language, and Information, ... recursion semantics as dominance constraints In Proc of the 41st ACL S Oepen, K Toutanova, S Shieber, C Manning, D Flickinger, and T Brants 2002 The LinGO Redwoods treebank: Motivation and preliminary...

Ngày tải lên: 20/02/2014, 12:20

... fragments may be recombined to derive an analysis of a new utterance, and • a definition of a probability model that indicates how the probability of a new utterance analysis is computed In defining ... random from among the fragments that can be composed with the current subanalysis The chosen fragment is composed with the current subanalysis to produce a new one; the process stops when an analysis ... Leiden, The Netherlands R Bod and R Kaplan, 1998 "A Probabilistic Corpus-Driven Model for Lexical Functional Analysis", Proceedings COLING-ACL'98, Montreal, Canada R Bonnema, R Bod and R Scha, 1997...

Ngày tải lên: 20/02/2014, 18:20

... Natural Language U n d e r s t a n d i n $ , by B W e b b e r and R Bobrow, BBN Report No 3878, Belt Beranek and Newman, Inc., Cambridge, MA, 1978 and C o n c l u s i o n Hayes, P and G Mouradian, ... a semantic i n t e r p r e t a t i o n for the partial parse found or to veto that partial parse This should aid performance ~ Summary Bobrew, D., R Kaplan, M Kay, D Norman, H Thompson and T ... ellipsis, an extension for inputs of different types, such as fragmentary answers to questions, and an extension for e x p a n s i o n ellipsis Hendrix, G., E Sacerdoti, D S a g a l o w i c z and J...

Ngày tải lên: 08/03/2014, 18:20

... Zeien and Brümmer [5] c Han and Banin [22] d Chang and Jackson [15] b as the difference between total C and the inorganic carbon content estimated from the carbonate content The cation exchange ... useful for soils with abundant organically-bound Al and/or imogolite and allophanic minerals such as in volcanic Andisols and some Podsols [12] The effect of extractant strength was tested on ... Hamilton-Taylor, Anal Chem 57 (1985) 1944 [21] K Saeki, S Matsumoto, Commun Soil Sci Plant Anal 25 (1994) 2147 [22] F.X Han, A Banin, Commun Soil Sci Plant Anal 26 (1995) 553 [23] U Schwertmann, R.M...

Ngày tải lên: 15/03/2014, 23:48

... Grishman 2001 Automatic Pattern Acquisition for Japanese Information Extraction In Proceedings of the Human Language Technology Conference (HLT2001) Roman Yangarber, Ralph Grishman, Pasi Tapanainen, ... description (translation of Japanese) Arrest Management Succession: Management Succes- A relevant document must describe the arrest of sion at the level of executives of a company The the suspect ... patterns, classifies a document as retrieved if any of the patterns match any portion of the document, and as random otherwise Thus, we can get the performance of text classification of the pattern...

Ngày tải lên: 23/03/2014, 19:20

... types the string confidant, we not really want to model this error as P(a | e), but rather P(ant | ent) And anticedent can more accurately be modeled by P(anti | ante), rather than P(i | e) By taking ... 633637 Ristad, E and P Yianilos (1997) Learning String Edit Distance International Conference on Machine Learning, Morgan Kaufmann Shannon, C (1948) “A mathematical theory of communication.” ... distance by filling a |s|*|w| weight matrix (Wagner and Fisher 1974; Hall and Dowling 1980), with only minor changes For computing the Damerau-Levenshtein distance between two strings, this can...

Ngày tải lên: 23/03/2014, 19:20

... inhomogeneities, rather than annual series, since some inhomogeneities may have opposite effects in different seasons and so be undetectable in the annual mean (The GHCN method uses annual series for ... variables other than precipitation, the adjustment used the mean x and standard deviation σ of the earlier (0) and later (1) sections The original values x in the later section were transformed as ... misleading changes in the seasonal cycle This risk was ameliorated by smoothing the set of 12 correction values using a Gaussian filter and adjusting to preserve the original mean and standard deviation...

Ngày tải lên: 30/03/2014, 13:20

... that the means and variability of the automatic and manual count were very similar Discussion The data presented here demonstrate agreement and equivalence between traditional manual and automated ... scanning and analysis It has the advantage of providing more efficient and objective results while automating the most laborious and subjective aspect of the assay – plaque counting Results can ... the data by assay, method, and complement treatment The range and mean of the replicate tests are depicted in Fig The difference in the mean of 136 replicates was less than 0.05 (log 4) between...

Ngày tải lên: 19/06/2014, 08:20

... microfiltration membranes, is more challenging than removal of bacteria [27-32] In addition, many enteric viruses are more resistant than bacteria to disinfection with chlorine and ultraviolet radiation ... variety of human tissues and fluids, including plasma and serum [64-68] Many attempts have been made to assign a pathology to TTV, but none have been substantiated In fact, Griffiths [69] and Simmonds ... Water Health 2004, 2:15-22 Pang L, Close M, Goltz M, Sinton L, Davies H, Hall C, Stanton G: Estimation of septic tank setback distances based on transport of E coli and F-RNA phages Environ Int...

Ngày tải lên: 20/06/2014, 01:20

... the planning tool, the user can interact with the virtual pelvic bones and bone fragments through the haptic device, by dragging and rotating them into anatomically correct positions (Figure and ... considered an anatomic reduction, of to mm a satisfactory and greater than mm an unsatisfactory reduction Qualitative visual analysis of the accuracy of internal fixation was done by means of hybrid ... preoperative surgical planning Figure Case - hybrid rendering of the postoperative CT and preoperative planning showing the osteosynthesis implants as planned (blue) and as executed (orange) Oblique lateral...

Ngày tải lên: 20/06/2014, 04:20

... potential animal model Mod Pathol 1997, 10:879-883 Ludwig A, Murawska M, Panek G, Timorek A, Kupryjanczyk J: Androgen, progesterone and FSH receptor polymorphisms and ovarian cancer risk and outcome ... the immunohistochemical analysis, performed the statistical analysis, and drafted the manuscript NZ and EN carried out the immunohistochemical analysis and drafted the manuscript JB collected ... lifestyle-related and genetic factors in relation to ovarian cancer risk in general and to AR-defined subtypes in particular Abbreviations AR: Androgen Receptor; EOC: Epithelial Ovarian Cancer; OCSS: Ovarian...

Ngày tải lên: 20/06/2014, 07:20