Results 11 to 20 of about 1,672,113 (290)

Comment on “Defining a curve as a Bezier curve”

open access: yesJournal of Taibah University for Science, 2020
In a recent article published in this journal, Baydas and Karakas show how to compute the Bézier representation of a curve given in power form. We note that this straightforward exercise, including a closed-form expression for the transformation matrix ...
J. Sánchez-Reyes
doaj   +1 more source

Augmented reality usage for prototyping speed up

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
The integral part of production process in many companies is prototyping. Although, these companies commonly have high quality visualization tools (large screen projections, virtual reality), prototyping was never abandoned. There is a number of reasons.
Jiří Šťastný   +3 more
doaj   +1 more source

Thirty-six full matrix forms of the Pascal triangle: Derivation and symmetry relations

open access: yesScientific African, 2021
For all 2≤n∈N, the four vertices (00),(n0),(2nn),(nn) of the Pascal Triangle expanded from level 0 to level 2n define the greatest embedded rhomboid sub-block denoted n−GRSB in this paper.
Prosper K. Doh   +2 more
doaj   +1 more source

Matrix Shanks Transformations

open access: yesThe Electronic Journal of Linear Algebra, 2019
Shanks' transformation is a well know sequence transformation for accelerating the convergence of scalar sequences. It has been extended to the case of sequences of vectors and sequences of square matrices satisfying a linear difference equation with scalar coefficients.
Brezinski, Claude   +1 more
openaire   +2 more sources

Expression of strain tensor in orthogonal curvilinear coordinates

open access: yesGeodesy and Geodynamics, 2010
Based on an analysis of connotation and extension of the concept of the orthogonal curvilinear coordinates, we have deduced a platform of strain tensor expression of Cartesian coordinates, which turns out to be a function of Lame coefficient and unit ...
Xuyan Liu, Yingfeng Ji, Quanqiang Liang
doaj   +1 more source

On the Reproducibility and Generalisation of the Linear Transformation of Word Embeddings [PDF]

open access: yes, 2017
Linear transformation is a way to learn a linear relationship between two word embeddings, such that words in the two different embedding spaces can be semantically related.
Fang, Anjie   +4 more
core   +1 more source

Real-time pose estimation of underground unmanned aerial vehicle based on ICP method

open access: yesGong-kuang zidonghua, 2019
In view of characteristics of no GPS signal, low illumination and structured environment in coal mine, a real-time pose estimation method for underground unmanned aerial vehicle (UAV) based on iterative closest point (ICP) was proposed.
WANG Yan   +3 more
doaj   +1 more source

Loop Transfer Matrix and Loop Quantum Mechanics [PDF]

open access: yes, 2000
We extend the previous construction of loop transfer matrix to the case of nonzero self-intersection coupling constant $\kappa$. The loop generalization of Fourier transformation allows to diagonalize transfer matrices depending on symmetric difference ...
Savvidy, G. K.
core   +2 more sources

Multipole matrix elements of Green function of Laplace equation [PDF]

open access: yes, 2015
Multipole matrix elements of Green function of Laplace equation are calculated. The multipole matrix elements of Green function in electrostatics describe potential on a sphere which is produced by a charge distributed on the surface of a different ...
Górka, Przemysław, Makuch, Karol
core   +1 more source

The Development of Enterprise Competencies in the Context of Digitalization [PDF]

open access: yesProblemi Ekonomiki
The activation of processes related to digitalization – the penetration of digital technologies into all areas of activity – creates broad opportunities for improving the operations of enterprises, in particular for the development of their competencies,
Serhiienko Olena A.   +1 more
doaj   +1 more source

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