Results 31 to 40 of about 1,003,903 (269)

Proof; Justification; Mathematical validation process; Levels and type of proof; ACODESA

open access: yesEnseñanza de las Ciencias, 2019
In this article we report how an approach was promoted from the pre-formal to the formal stage regarding the students’ way of justifying mathematical reasoning.
Álvaro Sebastián Bustos Rubilar   +1 more
doaj   +1 more source

Towards an Intelligent Tutor for Mathematical Proofs [PDF]

open access: yes, 2012
Computer-supported learning is an increasingly important form of study since it allows for independent learning and individualized instruction. In this paper, we discuss a novel approach to developing an intelligent tutoring system for teaching textbook ...
Abigail S. Gertner   +73 more
core   +2 more sources

The Tur\'{a}n number and probabilistic combinatorics [PDF]

open access: yes, 2011
In this short expository article, we describe a mathematical tool called the probabilistic method, and illustrate its elegance and beauty through proving a few well-known results. Particularly, we give an unconventional probabilistic proof of a classical
Aw, Alan J.
core   +1 more source

Phenotypic and genotypic characterization of single circulating tumor cells in the follow‐up of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Single circulating tumor cells (sCTCs) from high‐grade serous ovarian cancer patients were enriched, imaged, and genomically profiled using WGA and NGS at different time points during treatment. sCTCs revealed enrichment of alterations in Chromosomes 2, 7, and 12 as well as persistent or emerging oncogenic CNAs, supporting sCTC identity.
Carolin Salmon   +9 more
wiley   +1 more source

Relations between Generalization, Reasoning and Combinatorial Thinking in Solving Mathematical Open-Ended Problems within Mathematical Contest

open access: yesMathematics, 2020
Algebraic thinking, combinatorial thinking and reasoning skills are considered as playing central roles within teaching and learning in the field of mathematics, particularly in solving complex open-ended mathematical problems Specific relations between ...
Janka Medová   +2 more
doaj   +1 more source

Developing Students Ability To Write Mathematical Proof By Polya Method [PDF]

open access: yes, 2011
Both writing and reading a proof is equally not easy. Some mathematicians attested that students found difficulties in mathematical proving. Mathematics and mathematics education experts like Jones (1997, 2001), Weber (2001), and Smith (2006) found that ...
Kodirun, Kodirun
core  

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Configural reasoning as coordination of visualisation process

open access: yesEnseñanza de las Ciencias, 2011
This study identifies visualisation processes in student primary teachers when they solve geometry problems requiring mathematical proof, in a pencil-and-paper environment.
Germán Torregrosa-Gironés   +2 more
doaj   +1 more source

Multiplicative-Additive Focusing for Parsing as Deduction

open access: yes, 2015
Spurious ambiguity is the phenomenon whereby distinct derivations in grammar may assign the same structural reading, resulting in redundancy in the parse search space and inefficiency in parsing.
Morrill, Glyn, Valentín, Oriol
core   +2 more sources

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