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See detailSome misunderstood or unknown tricks (XIII) (LaTeX)
Merciadri, Luca ULg

in TUGboat (in press)

We will here again consider many tips and tricks. This time, they will mostly come from Glad Deschrijver, TeX Tricks, 2011. (http://users.ugent.be/~gdschrij/LaTeX/textricks.html.) Tricks: vertically ... [more ▼]

We will here again consider many tips and tricks. This time, they will mostly come from Glad Deschrijver, TeX Tricks, 2011. (http://users.ugent.be/~gdschrij/LaTeX/textricks.html.) Tricks: vertically aligned itemize environments, allowing linebreaks after comma in math mode, writing under and over elements, and using stacks, footnotes with a new number at each section, footnotes in tabular, splitting algorithm environments on multiple pages, let " produce opening/closing quotation marks, indenting some text but not the first line, using diagonal dots positioned according to the opposite diagonal, using a centered verbatim environment, drawing a table with dashed lines, shaded cells and arrows pointing at a row and a column, correct spacing around square brackets (used for sets) in math mode. [less ▲]

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See detailSome misunderstood or unknown tricks (XI) (LaTeX) and encoding issues (II)
Merciadri, Luca ULg

in TUGboat (in press)

Three subjects will be detailed: 1. Using LaTeX syntax as an unambiguous way to communicate, 2. Writing a bold \ell, 3. Fonts' encodings.

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See detailSome misunderstood or unknown tricks (X) (LaTeX)
Merciadri, Luca ULg

in TUGboat (in press)

This is the 10th edition of my TUGboat `Tips & Tricks.' This time, we shall first see how to write `dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display ... [more ▼]

This is the 10th edition of my TUGboat `Tips & Tricks.' This time, we shall first see how to write `dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display aligned (in)equations systems. We will then end by discussing on BibLaTeX and Biber, which constitute a promising alternative to BibTeX. [less ▲]

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See detailSome misunderstood or unknown LaTeX tricks (XIV) and LaTeX learning curve
Merciadri, Luca ULg

in TUGboat (in press)

We will here give three tricks: i. using a personalized \overline, ii. boxing every digit of an integer, iii. using \scalebox. I will then expose my point of view about the LaTeX learning curve, and give ... [more ▼]

We will here give three tricks: i. using a personalized \overline, ii. boxing every digit of an integer, iii. using \scalebox. I will then expose my point of view about the LaTeX learning curve, and give some of the most common beginners’ mistakes. [less ▲]

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Peer Reviewed
See detailOptimal Assignment of Off-Peak Hours to Lower Curtailments in the Distribution Network
Merciadri, Luca ULg; Mathieu, Sébastien ULg; Ernst, Damien ULg et al

in Proceedings of the 5th European Innovative Smart Grid Technologies (ISGT) (2014, October)

We consider a price signal with two settings: off-peak tariff and on-peak tariff. Some loads are connected to specific electricity meters which allow the consumption of power only in off-peak periods ... [more ▼]

We consider a price signal with two settings: off-peak tariff and on-peak tariff. Some loads are connected to specific electricity meters which allow the consumption of power only in off-peak periods. Historically, off-peak periods were located during the night and on-peak periods during the day. Changing the assignment of off-peak periods is an easy method for distribution system operators to access to the flexibility of small consumers. This solution can be implemented quickly as the infrastructure needed already exists in some countries. We propose a mixed-integer linear model to assign optimally the off-peak hours so as to minimize a societal cost. This cost gathers together the cost of electricity, the financial losses due to energy curtailments of photovoltaic installations and the loads' wellbeing. Our model considers automatic tripping of inverters and constraints of the electrical distribution networks. Simulation results show that the new disposition of off-peak hours could reduce significantly the photovoltaic energy curtailed in the summer. [less ▲]

Detailed reference viewed: 59 (14 ULg)
See detailSome misunderstood or unknown tricks (IX) (LaTeX)
Merciadri, Luca ULg

E-print/Working paper (2014)

We describe here how to display date & time in a standard format, write (draw) dash integrals, number rows in tables, use unhabitual punctuation marks: interrobang and percontation point, draw dependency ... [more ▼]

We describe here how to display date & time in a standard format, write (draw) dash integrals, number rows in tables, use unhabitual punctuation marks: interrobang and percontation point, draw dependency arrows, distinguish between ConTeXt, LuaTeX, teTeX and XeTeX. The last section gives a LaTeX-related crossword puzzle. [less ▲]

Detailed reference viewed: 46 (21 ULg)
See detailManagement of night-only electricity meters
Merciadri, Luca ULg

Master's dissertation (2014)

In this Master’s thesis, the influence of PhotoVoltaic (PV) panels on the distribution network is explained and related available solutions are also mentioned. We focus on a solution which consists of ... [more ▼]

In this Master’s thesis, the influence of PhotoVoltaic (PV) panels on the distribution network is explained and related available solutions are also mentioned. We focus on a solution which consists of optimally using flexible loads. We consider a price signal with two settings: off- peak tariff and on-peak tariff. Some suitable loads are connected to specific electricity meters, called ‘night-only meters,’ which allow the consumption of power only in off-peak periods. We describe the meters’ characteristics and the suitable loads. We also discuss the aspects related to the practical implementation. Historically, off-peak periods were located during the night and on-peak periods during the day. Changing the assignment of off-peak periods is an easy method for distribution system operators to access to the flexibility of small consumers. This solution can be implemented quickly as the infrastructure needed already exists. We propose a mixed-integer linear model to assign optimally the off-peak hours so as to maximize a social welfare. This welfare gathers together the cost of electricity, the financial losses due to energy curtailments of PV installations and the loads’ wellbeing. Our model considers automatic tripping of inverters and constraints of the electrical distribution networks. We target night-only meters, but an extension to dual-hourly meters is also presented. The results compare the application of the classical pattern against the optimal one for summer and winter days, the influence of the available variable power for a summer day, and the use of a monthly-optimal pattern against the classical one for a summer month. The new disposition of off-peak hours can reduce by 50% the PV energy curtailed in the summer, and can also help reducing the power flow going through the High-Voltage (HV)/Medium-Voltage (MV) transformer. The document ends by a cost analysis comparing the homes’ money gains in two main cases: classical pattern and monthly-optimal one, for a summer month. For each case, the Distribution System Operator (DSO) either refunds curtailments or not. Four different types of homes are considered: with or without night-only meters, with or without PV. This analysis allows to know rapidly who earns money and who looses money by getting plausible values of electricity bills. [less ▲]

Detailed reference viewed: 23 (6 ULg)
See detailSome misunderstood or unknown tricks (VIII) and Turing-completeness (LaTeX)
Merciadri, Luca ULg

E-print/Working paper (2014)

We will begin by exposing new tricks, i.e. how to 1. write ‘closed’ square roots, 2. insert blank pages, 3. ask the reader to turn the page, 4. write bold words in an index, 5. divide a cell by a diagonal ... [more ▼]

We will begin by exposing new tricks, i.e. how to 1. write ‘closed’ square roots, 2. insert blank pages, 3. ask the reader to turn the page, 4. write bold words in an index, 5. divide a cell by a diagonal, 6. draw ‘product integrals,’ 7. understand what happens when \mathcal has a lower-case letter argument. We will then consider an uncommon example of what one can do with LaTeX, in link with its Turing completeness. [less ▲]

Detailed reference viewed: 56 (20 ULg)
See detailSome misunderstood or unknown tricks (VII) (LaTeX)
Merciadri, Luca ULg

E-print/Working paper (2013)

This time, as habitually, we shall see some tricks: 2. Putting two itemizations on the same line, 3. Using footnotes in boxes, 4. Dealing with PDF cut-and-past and search functionalities, even when you ... [more ▼]

This time, as habitually, we shall see some tricks: 2. Putting two itemizations on the same line, 3. Using footnotes in boxes, 4. Dealing with PDF cut-and-past and search functionalities, even when you are using accented characters, 5. Making a distinction with \overline for propositional logic formulae, 6. Referring to \labels by long names. We will then discuss some problems people often face when dealing with many figures, and, more generally, floats, in reports. Finally, we will deal with a Beamer scheme which aims at using a single file for both a presentation, and the related report. [less ▲]

Detailed reference viewed: 70 (38 ULg)
See detailSome misunderstood or unknown LaTeX tricks (VI)
Merciadri, Luca ULg

E-print/Working paper (2012)

Customizing a document class is important in the LaTeX world. We will consider two examples of this using the lettre document class. Next, we will consider a small fraction of a bigger LaTeX problem: the ... [more ▼]

Customizing a document class is important in the LaTeX world. We will consider two examples of this using the lettre document class. Next, we will consider a small fraction of a bigger LaTeX problem: the details of character encoding. [less ▲]

Detailed reference viewed: 35 (17 ULg)
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See detailTeX in the eBook era: a simple –yet fully working– approach
Merciadri, Luca ULg

in PracTeX journal (The) (2012), 2012(1),

There are many advantages to reading eBooks, and their usage is ever increasing. There are those who prefer traditional printed books, but there is also a growing audience whose lifestyle and taste is ... [more ▼]

There are many advantages to reading eBooks, and their usage is ever increasing. There are those who prefer traditional printed books, but there is also a growing audience whose lifestyle and taste is suited to eBooks. We discuss some advantages of using eBooks, and creating them with LaTeX. We continue by explaining technical aspects that might improve and help you with your LaTeX eBook. We end with a short discussion about the PDF file format and its use with eBook documents. [less ▲]

Detailed reference viewed: 104 (31 ULg)
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See detailSome misunderstood or unknown tricks (V) (LaTeX)
Merciadri, Luca ULg

in TUGboat (2012), 33(1), 43-45

This time, as usual, we shall see some LaTeX hints (numbered according to the following sections): 2. Numbering paragraphs, 3. Incorporating MATLAB graphics, 4. Incorporating MATLAB code, 5. Customizing ... [more ▼]

This time, as usual, we shall see some LaTeX hints (numbered according to the following sections): 2. Numbering paragraphs, 3. Incorporating MATLAB graphics, 4. Incorporating MATLAB code, 5. Customizing an index. [less ▲]

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See detailA student viewpoint on the aesthetics of publications, from the perspective of effectiveness
Merciadri, Luca ULg

in EuroBachoTeX 2011 proceedings (2011, November 28)

Writing a document is a difficult task because the writer needs to think about two different concepts: the appearence of the document, and its content. Both constitute the message the writer wants to ... [more ▼]

Writing a document is a difficult task because the writer needs to think about two different concepts: the appearence of the document, and its content. Both constitute the message the writer wants to transmit. We will here treat about the aesthetics of publications, from the perspective of effectiveness (which implies clarity). We begin by discussing some (but not all!) basic principles on how to write a good article, then treat about what LaTeX can help you to do to improve your document's content. We end with what you might do and do not about graphical \ae sthetism, and then end with some tips on how to ensure aesthetism, together with effectiveness, when writing an article. [less ▲]

Detailed reference viewed: 102 (52 ULg)
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See detailMerciadri (LaTeX) packages: An overview
Merciadri, Luca ULg

in TUGboat (2011), 32(2), 206-210

I have written three LaTeX2e packages, namely bigints, dashundergaps, and plantslabels. Because there are so many submitted packages, TeX-information sources are so used that communications rapidly go to ... [more ▼]

I have written three LaTeX2e packages, namely bigints, dashundergaps, and plantslabels. Because there are so many submitted packages, TeX-information sources are so used that communications rapidly go to the archives, their respective emergences could have been unoticed by the majority of the Community. I here propose a brief summary about what they do, and how they could be useful for your work. [less ▲]

Detailed reference viewed: 77 (31 ULg)
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See detailSudokus' ranks
Merciadri, Luca ULg; Eastham, Chip

E-print/Working paper (2011)

A Latin square of order n^2 is a Sudoku matrix if subdividing its entries into n^2 disjoint n-by-n subblocks causes each symbol to appear once in each subblock. Symbols are taken from {1, ..., n^2}, and n ... [more ▼]

A Latin square of order n^2 is a Sudoku matrix if subdividing its entries into n^2 disjoint n-by-n subblocks causes each symbol to appear once in each subblock. Symbols are taken from {1, ..., n^2}, and n^2 = 9 then corresponds to the familiar recreation. A construction of cyclic latin squares (see Shiu, W.C. and Fang, K.T. and Ma, S. L., On the Rank of Cyclic Latin Squares, Linear and Multilinear Algebra, Vol. 40, pp. 183-188) determines their minimum rank and shows they can attain full rank. It follows that Sudoku matrices can also be full rank. The present authors initially thought that the minimum ranks of Sudoku matrices would equal the minimum ranks of cyclic latin squares of the same order, i.e. 1 + \sum_{i=1}^{s} \varphi\left((p_i)^{t_i}\right) where n=\prod_{i=1}^{s} (p_i)^{t_i} is the prime factorization (of n), and \varphi is Euler's totient function. However, a block-cyclic latin square construction is found that attains a smaller rank. For the case n^2 = 9, one gets a rank 5 matrix rather than rank 7. Some generalizations such as taking symbols from {0, ..., n^2 -1} are discussed, and comparisons made to ranks of more general kinds of latin squares. We also discuss the possibility of finding a rank inferior to 5 for a 9*9 Sudoku matrix. (Until here, no test revealed such a possibility, but tests are not finished yet.) [less ▲]

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See detailSome misunderstood or unknown tricks (III) (LaTeX)
Merciadri, Luca ULg

in TUGboat (2011), 32(1), 104-107

After two others TUGboat articles, here is a third one. This time, other tips will be given. We shall see 1. How to print, in an easy way, a monochrome version of a document, 2. How to draw rightmost ... [more ▼]

After two others TUGboat articles, here is a third one. This time, other tips will be given. We shall see 1. How to print, in an easy way, a monochrome version of a document, 2. How to draw rightmost braces, 3. How to draw watermarks, 4. A plagiarism discussion and the related computational solutions. [less ▲]

Detailed reference viewed: 63 (33 ULg)
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See detailThe turnthepage package
Merciadri, Luca ULg

Computer development (2011)

On some examination sheets, some professors or lecturers like to indicate to the reader that the `page' can be turned. One might implement a LaTeX mechanism so that each odd page (except the last one, if ... [more ▼]

On some examination sheets, some professors or lecturers like to indicate to the reader that the `page' can be turned. One might implement a LaTeX mechanism so that each odd page (except the last one, if any) displays a message to turn the page. This mechanism can also be useful for different kinds of documents. This package should thus be used for exams, or special documents printed `twoside.' [less ▲]

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See detailSome misunderstood or unknown tricks (IV) (LaTeX)
Merciadri, Luca ULg

in TUGboat (2011), 32(3), 342-344

This time, as habitually, we shall see tricks. Here, tricks will be: 1. How to box an equation in an align (or its align* brother), 2. How to write a standard but elegant title page, 3. How to write text ... [more ▼]

This time, as habitually, we shall see tricks. Here, tricks will be: 1. How to box an equation in an align (or its align* brother), 2. How to write a standard but elegant title page, 3. How to write text above and below an image, 4. How to modify spacing between lines, 5. How to write a left brace in a subequations environment. [less ▲]

Detailed reference viewed: 72 (37 ULg)
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See detailDocuments as a source of information; Tabular packages' purposes, conflicts; Same space in matrices; Logic inferences
Merciadri, Luca ULg

in TUGboat (2011)

The various aspects of the title are considered.

Detailed reference viewed: 27 (14 ULg)
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See detailA Sudoku Submatrix Study
Merciadri, Luca ULg

E-print/Working paper (2010)

In our last article, we gave some properties of Sudoku matrices. We here investigate some properties of the Sudoku submatrices. We first deal with their eigenvalues and try to find an upper bound on them ... [more ▼]

In our last article, we gave some properties of Sudoku matrices. We here investigate some properties of the Sudoku submatrices. We first deal with their eigenvalues and try to find an upper bound on them, and then follow exactly the same structure as in our last article to establish a connection between Sudoku matrices’ properties and sudoku submatrices’ properties. [less ▲]

Detailed reference viewed: 67 (25 ULg)