All issues
20.07.2017   
Creative Mathematics
and Informatics



Print Edition: ISSN 1584 - 286X
Online Edition: ISSN 1843 - 441X


Creative Math. and Inf. is a category B+ journal in the CNCSIS classification

Indexed by:
Mathematical Reviews
Zentralblatt MATH

Current rejection rate: 37.5 %


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Vol. 11 (2002),
Computing some definite integrals
Author: Dumitru Acu
Abstract: In this article we calculate some definite integrals
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The problems given at "American Mathematics Competitions 10" from february 13, 2001
Author: Ruxandra Berinde / Madalina Berinde
Abstract: The paper presents solutions to all the problems proposed at the contest "AMERICAN MATHEMATICS COMPETITIONS 10" from february 13, 2001.
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The problems given at "American Mathematics Competitions 12" from february 13, 2001
Author: Mădălina Berinde / Ruxandra Berinde
Abstract: The paper presents solutions to all the problems proposed at the contest "AMERICAN MATHEMATICS COMPETITIONS 12" from february 13, 2001.
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The problems given at IMC-9, Warsaw, july 19-25, 2002
Author: Mădălina Berinde / Vasile Berinde
Abstract: We present the problems given at IMC-9, Warsaw, July 19-25, 2002, followed by solutions and some comments. The note could be useful to those students who intend to train themselves for the mathematics competitions for university students.
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On the implicit function theorem
Author: Iulian Coroian
Abstract: The implicit function is a basic theorem of mathematical analysis and it has a major importance in many mathematical problems. This theorem has many formulations, see [5]. Every category of functions has its own special version of implicit function theorem and there are particular versions adapted to Banach spaces, algebraic geometry and to functions that are not even smooth. The aim of this article is to state and to proof a version of analytic implicit function theorem for functions of two variables. Then we will give an application.
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Some recurrent integral formulas
Author: Andrei Horvath-Marc
Abstract:
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No. of downloads: 203 Full access PDF |
A Taylor type theorem with lateral derivative
Author: Gabriella Kovacs
Abstract: In this note we formulate a Taylor type result which deals with a lateral derivative; see Theorem 2. Then we give an application under convexity assumption; see Corollary 2.
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On the order of convergence of some sequences of Riemann's sums of functions with convex derivative
Author: Gabriella Kovacs
Abstract:
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No. of downloads: 238 Full access PDF |
Triangles in which an angle is a mean of the others
Author: Mariana Sanziana Pop / Ileana Balazs
Abstract: In this article we determine all the triangles which have an angle equal to the geometric, arithmetic, harmonic or quadratic mean of the others. The angles are measured in degrees. We also study the particular case when the measures of the angles are integer numbers.
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Circle escribable to a quadrilateral
Author: Ovidiu T. Pop
Abstract: In this article we will define the notion of circle escribable to a quadrilateral corresponding to a side of the quadrilateral. Then, in some conditions, the escribable circle's radius will be determined. In the end, the article contains identities and inequalities checked by the circle's radius escribabel to a quadrilateral.
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On the monotony of a sequence
Author: Ovidiu T. Pop / Gheorghe Szollosy
Abstract:
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No. of downloads: 175 Full access PDF |
Remarkable properties of quadrilaterals proved with the help of complex numbers
Author: Traian Tamaian
Abstract: In this article some of the remarkable properties of quadrilaterals are enunciated and proved with the help of complex numbers.
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Sur un probleme de numeration
Author: Laurențiu Modan
Abstract: This paper was written for clarifying a counting problem used in the hypergeometric probabilistic scheme. Through a simple Combinatorics principles we shall explain some approaches which have appeared in many books.
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From undeciphering to deciphering in mathematics
Author: Laurențiu Modan
Abstract: Based on a difficult problem from the entering examination in the Mathematics Faculty of Bucharest in September 1977, our paper analyses the wanted or involuntary undecipherings of the mathematical enunciations.There are criticized some kinds of faults, often appeared in the problem texts, proposed to be solved an this as a consequence of the multiple-choise examinations, absolutely unusual in Romania, and more, unrecommended for Mathematics.
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On multiple choice examination
Author: Istvan Huba Atilla Sass
Abstract:
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On some properties of some special trapezoids
Author: Gabriel Taga / Loredana Taga
Abstract:
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On the water-rocket engine problem. A case study in mathematical modeling
Author: Adrian Muntean
Abstract:
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Operators of evolution and operators of functioning
Author: Petru-Avram Petrișor
Abstract:
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Posibilities of implementation of some forecasting principles in Microsoft Excel
Author: Cristian Rusu / Virginia Rusu
Abstract:
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Encryption of a file with secret key in Visual Basic 6.0
Author: Marieta Gâta
Abstract:
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Bolyai was born 200 years ago
Author: Katalin Munkacsy
Abstract:
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Looking to the Eastern Europe Mathematical Community
Author: Vasile Berinde
Abstract:
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