Lietuvos matematikos rinkinys
Not a member yet
1812 research outputs found
Sort by
Didėjančios funkcijos apibrėžimas
Full text linkSome nuances of applications of the general definition of an increasing (decreasing, non-decreasing, non-increasing) function are discussed. The question of concern to teachers is answered: can a function be increasing not only on an open interval?Aptariami bendrojo didėjančios (mažėjančios, nemažėjančios, nedidėjančios) funkcijos apibrėžimo taikymo niuansai. Atsakoma į mokytojams rūpimą klausimą: ar funkcija gali būti didėjanti ne tik atvirame intervale
VU studentų matematikos olimpiadai praėjus
Full text linkSome problems of the olympiad are considered. One of them is solved.Santraukos nėra
Dešimtmečio po lietuviškos spaudos atgavimo aritmetikos vadovėlių panorama
Full text linkIn 1904 with the lifting of the ban on Lithuanian publications by Russian czar government and in 1906 with giving the permit to teach arithmetics in mother tongue at primary schools the legal publishing of Lithuanian arithmetic textbooks started. Already in 1906 even three arithmetic textbooks were published. These were two parts of ``Arithmetic Taskbook“ by Pranas Mašiotas, the first part of ``Collection of Arithmetic Tasks and Examples“ by Petras Bendorius and Pranas Daugirda and two parts of translated from Polish ``Arithmetic Tasks and Examples“ by Stanislaw Thom. All the books step by step explained in the Lithuanian language four arithmetic operations up to ten, later a hundred and finally up to a thousand.In 1909 two important books were published: the second part of the textbook by Petras Bendorius and Pranas Daugirda and ``Elementary Arithmetics“ by Petras Mikolainis. The latter textbook could be distinguished for methodical instructions.In 1909–1916 Juozas Damijonaitis prepared and published two parts of ``Arithmetic Textbook“. The book was recompiled into three parts during the period of the Republic of Lithuania (in 1918–1940). It became popular and was constantly republished.When forming of arithmetic basics was coming to end in 1916 ``The Short Science of Arithmetics“ by S. Thom (1916) appeared in the Lithuanian language, where the theory of arithmetics was presented.Santraukos nėra
Užsienio šalių įtaka kuriant matematikos programas tarpukario Lietuvoje
Full text linkThe influence foreign countries in creation of the mathematic syllabus in Lithuania between two world wars is presented in this article. Ideas of Klein and Merane program are discussed in this article. The influence and experience of foreign countries in creating the mathematics syllab us are introduced. Results of analysis Lithuanian mathematics syllabus and foreign counties (France, Austria, Germany, Italy) of this period are presented in this article.Santraukos nėra
Sekvencinio skaičiavimo panaudojimas BDI agentų realizavimui
No full textBDI logic is widely used to describe agent based systems, since it can express a lot of different real world domains with three main operators: belief, desire and intention. There are lots of works where BDI logic is used as descriptive language, but authors do not talk about implementation issues [5,2,4,8,1]. There is even known general agent implementation scheme, which do not describe howto use formal logic for such scheme implementation [12]. The main aim of this paper is to show the bridge, which connects formal and practical parts of logic. We describe how sequent calculus can be used for implementing some parts of general scheme. In this paper, we show how flexible constraints can be implemented. Sequent calculus usage is illustrated with simple examples.Pateikta bendra BDI agento realizavimo schema. Parodyta kaip tam tikrų dalių realizavimui gali būti panaudotas sekvencinis skaičiavimas. Pasiūlyta, kaip galima realizuoti lankstesnę funkciją filter
Didžiausių narių imtyje santykio pasiskirstymas ir momentų savybės
Full text linkLet us deal with positive i.i.d. random variables X1, . . ., Xm having a tail index α. Calculating a quotient of two biggest members in the set, we obtain a new random variable and investigate its distribution and moment properties. The method itself was proposed by prof. V. Paulauskas and co-authors in [1] and [2].Šiame straipsnyje nagrinėjamas prof. V. Paulausko ir bendraautorių ([1], [2]) pasiūlytas naujas įvertis pasiskirstymo „uodegos“ indeksui nustatyti, suformuluojamos bei įrodomos didžiausių narių grupelėje santykio k-tųjų momentų savybės, kai k ≥ 0
Finansinių aktyvų dinamikos skaitmeninis modelis
Full text linkIn the article is proposed the algorithm how to model the dynamics of asset prices by Markov process with continuous time and countable set of states.Santraukos nėra
Parametrų įvertinimas L1 normos metodu stochastiniame tiesiniame su vėlinimu augimo modelyje
No full textThis paper considered deterministic and stochastic delayed linear growth laws for the modeling of the process of growth. For the estimation of parameters the L1 distance procedure was proposed. As an illustrative experience was used a real data set from repeated measurements on permanent sample plots of pine stands in Lithuania.Darbe augimo procesui modeliuoti yra naudojamas stochastinis tiesinis su vėlinimu modelis. Augimo proceso parametrų įvertinimui pritaikyta L1 atstumo procedūra. Rezultatai iliustruojami panaudojant Lietuvos pušies medynų stebėjimo duomenis
MAUT metodo naudojimas esant apibrėžtumo sąlygoms
Full text linkMultiple criteria decision-making methods enable to choose the optimal decision, if his criterions is contradictorys. In herein paper is describe MAUT – multiattribute utility theory. This method is reasoned in theory. MAUT up for indeterminations situations, but can to use for determinations situations. In this method multiple criteria problem solvable with the help of unitary utility functions.Santraukos nėra
Čebyšovo nelygybės unimodaliesiems skirstiniams
No full textWe provide precise upper bounds for the survival function of bounded unimodal random variables.Gauti tikslūs tikimybių P(X ≥ x) įverčiai iš viršaus, kai X yra aprėžtas unimodalusis atsitiktinis dydžis