Paris, 1901. Small folio. Original printed wrappers. The fragile wrappers have been expertly restored along the edges. A stain to back wrapper, a closed horizontal tear, and spine re-enforced. A bit of soiling and discolouration. With a library-label to top of front wrapper, from the Bibliothèque des professeurs St-Stanislas, Mons, of which there is a book-plate to half-title and a stamp to title-page. Wrappers loose. Internally some brownspotting and finely restored marginal chipping, far from affecting text. 32 pp. Richly illustrated.
Exceedingly scarce original offprint of Torres y Quevedo's publication of his seminal algebraic machines, constituting a milestone in computing history. In this thoroughly illustrated publication, Torres y Quevedo explains the construction and operation of the first accurate calculating machines, following his explanation of them before the French Academy of Sciences earlier the same year. ""At the end of the nineteenth century, several analog machines had been proposed for solving algebraic equations. These machines -based not only on kinematics principles but also on dynamic or hydrostatic balances, electric or electromagnetic devices, etc.- had one important drawback: lack of accuracy. Leonardo Torres was the first to beat the challenge of designing and implementing a machine able to compute the roots of algebraic equations that, in the case of polynomials of degree eight, attained a precision down to 1/1000. The key element of Torres' machine was the endless spindle, an analog mechanical device designed to compute log(a +b) from log(a) and log(b). This short account gives a detailed description of this mechanism."" (Federico Thomas: A Short Account on Leonardo Torres' Endless Spindle). Leonardo Torres y Quevedo (1852 -1936), civil engineer and mathematician, was a one of the most important Spanish inventors of all time. Although little known outside of Spain and France in his life-time, he was an inventor of the utmost importance and would later be recognized as one of the most significant inventors of the beginning of the twentieth century. Apart from pioneering accurate automated calculation machines, he was also a pioneer in the development of the radio control, the inventor of a chess automaton (the first decision-making automaton), an innovative designer of the three-lobed non-rigid Astra-Torres airship as well as the Whirlpool Aero Car located in Niagara Falls, and with his Telekine, he created wireless remote-control operation principles.""Leonardo Torres was probably the most eminent Spanish engineer in the first half of the 20th century. He had a great influence, truncated by the Spanish Civil War, in the development of automatic control in Spain. As Randell points out in, we can only speculate on what might happened if Torres' writings had become better known to the English-speaking world. For instance, he qualifies Torres' paper Essays on Automatics as ""a fascinating work which well repays reading even today."" The paper contains what Randell believes to be the first proposal of the idea of floating-point arithmetic. It seems clear that Torres' contributions deserve much wider appreciation outside Spain"". (Federico Thomas: A Short Account on Leonardo Torres' Endless Spindle). ""Because of Torres Quevedo's work on analog machines, the Paris Academy of Sciences welcomed his ""Calculating Machines"" report in 1900. As a result, he was elected to the Academy of Sciences in Madrid in 1901, where he delivered a lecture on algebraic machines.The endless spindle was a critical component of the 8-term equation-solving computing machine. It created sums to answer the algorithm's central equation. The mechanism was the first of its sort, and it was the most intriguing and unique of Torres Quevedo's inventions.Torres Quevedo's calculating machine was both theoretically and practically groundbreaking. The endless spindle is a mechanical device that evaluates an expression's logarithm as the sum of numerous logarithms, overcoming the difficulty of reaching enough precision with an automatic set of parts."" (The History of the Computer) The algebraic machine of Torres was an analog computing device, featuring a mechanism based on cone-shaped pulley with a helical groove around it. The machine was used for the resolution of equations like: + Ax = B or + Ax = B. His publications marked the beginning of a new era in mathematical theory, and his contributions resulted in the creation of cutting-edge new machinery. ""Torres Quevedo's writings ushered in a new era in mathematical theory based on new concepts. His contributions led to the development of innovative new machines.He built a series of analog calculating machines to complement his theoretical work, all of which were mechanical."" (Torres Quevedo Museum - where another copy of the present offprint is displayed) ""Leonardo Torres (1852-1936), usually known as Leonardo Torres y Quevedo in Spanish-speaking countries, was a Spanish engineer and mathematician. He was president of the Academy of Sciences of Madrid, a member of the French Academy of Sciences, and famous-mainly in Spain and France- as a prolific and successful inventor... Some of the earliest Torres' inventions took the form of mechanical analog devices, considered of great originality, aiming at implementing what he called the Algebraic Machine. This machine had the ability of computing the values of arbitrary polynomial functions in one variable. Since it was an analogue machine, the variable could attain any value, not only a preestablished set of discrete values, contrarily to what happened, for example, with the celebrated Babbage's Difference Engine, an engine that used the method of finite differences to generate successive values of polynomial functions. In Torres' Algebraic Machine, all quantities were represented by means of angular displacements in logarithmic scale. Then, adding a counter to keep track of the number of turns, it was possible to compactly represent very large variations for all quantities. When the wheel representing the variable spun round, the final result was obtained as the angular displacement of another wheel that accumulated the addition of all involved monomials. When this result was zero, a root of the function was found. Using proper modifications, it was even possible to obtain the complex roots. The use of logarithms had two main advantages. Firstly, assuming that all absolute errors for the angular displacements were constant, all relative errors for the represented quantities were also kept constant. Secondly, the computation of monomials was greatly simplified. Actually, the logarithm of a monomial of the form aixi is an expression, ai+ilogx, that can be easily calculated using a differential transmission. Nevertheless, the use of logarithms had a number of disadvantages. It was necessary to introduce some transformations to ensure that all quantities were positive and, what was much more challenging, it was necessary to design a sophisticated mechanical device able to compute log(a +b) from log(a) and log(b) that would permit to accumulate the sum of all involved monomials. This device was the endless spindle. In 1893, Leonardo Torres presented, before the Academy of Exact, Physical and Natural Sciences, a memoir on his Algebraic Machine. In his time, this was considered an extraordinary success for Spanish scientific production. In 1895 the machine was presented at a congress in Bordeaux. Later on, in 1900, he would present his calculating machine before the Paris Academy of Sciences."" The present offprint, which richly illustrates, demonstrates, and presents his seminal calculating machines, was published after his presentation at the Academy of Sciences in Paris, and as he says in the preface to the present offprint ""the theoretical principles of these machines have very recently been exposed in a mémoire entitled ""Machines à calculer"" [See Tomash & Williams: T 47, printed 1902], presented by me at the l'Académie des Sciences, which should appear also in the ""Recueil des Savants étrangers."" (own translation from p. (5) ). This publication is of the utmost scarcity, and we can locate merely two copies of this offprint: at the Torres y Quevedo-museum in Spain, and at the Hungarian Academy of Sciences.
Torres Balbas, Leopoldo: Arte Almohade : Arte Nazarà : Arte MudÃjar. Madrid: Plus Ultra, 1949. Series: Ars Hispaniae Historia Universal del Arte Hispánico. Volume IV. 428pp with 482 monochrome illustrations. Quarter bound with spine bound in burgundy morocco, embossed and gilt cloth boards. 28x22cms. Part of the important series on Spanish art, this volume covers all aspects of art and decorative arts of the Moorish period from mid 12th century up to the late 1500s - including the building of the Alhambra and Hispano-Moresque wares and textiles. Text in Spanish.
Part of the important series on Spanish art, this volume covers all aspects of art and decorative arts of the Moorish period from mid 12th century up to the late 1500s - including the building of the Alhambra and Hispano-Moresque wares and textiles. Text in Spanish
2001 2001. Mario Torres: Les Fruits Qui Guérissent / Trajectoire 2001
Etat correct
Vela, Javier Torres: Julian Schnabel Reconocimientos Pinturas del Carmen: The Recognitions Paintings. 1988. Signed and dedicated to Leslie and Clodagh by the artist. Unpaginated, colour and black and white illustrations. Paperback. 29 x 23cms. Text in Spanish and English.
Text in Spanish and English
Catalogue édité à l'occasion de l'exposition "Felix Gonzalez-Torres - Roni Horn" à la Bourse de Commerce - Pinault Collection, du 6 avril au 22 août 2022, conçue par Caroline Bourgeois.
Reference : 25677
ISBN : 9782373721492
<meta charset="utf-8"><p data-mce-fragment="1">Catalogue de l’exposition « Felix Gonzalez-Torres—Roni Horn ». L'exposition proposée à la Bourse de Commerce est d’abord un rêve, celui de pouvoir présenter deux artistes dont le travail et l’engagement ont énormément compté pour leurs pairs. Dans la continuité de leur profonde amitié et à partir d’œuvres emblématiques conservées par la Collection Pinault, l’exposition fait dialoguer les œuvres de l’un et l’autre, comme si leur discussion continuait d’exister au présent.</p><p data-mce-fragment="1">Dans la continuité d'un échange créatif entre les deux artistes, nourri pendant plusieurs années et brutalement suspendu par la disparition de Felix Gonzalez-Torres, l’exposition de la Bourse de Commerce est rendue possible grâce à l’implication de Roni Horn, avec la complicité de la Felix Gonzalez-Torres Foundation. Entre installations, photographies et sculptures, le dialogue des deux artistes se perpétue à travers une série d’œuvres à la beauté fragile et à l’extrême puissance émotionnelle, tout en miroir et en lumière, avec la conviction que « l’acte de regarder chacun de ces objets est transfiguré par le genre, la race, la classe social et la sexualité » (Felix Gonzalez-Torres). Au cœur de leur travail, et dans cette exposition en particulier, il s’agit donc de saisir le caractère « intermédiaire » de l’existence, la dimension d’entre-deux, prise dans cette tension entre présence fragile et irréductible disparition. Le dialogue entre les œuvres de Roni Horn et de Felix Gonzalez- Torres s’ancre dans le balancement entre ces deux polarités, entre vie et mort, entre le public et le privé, le personnel et le social, « entre la peur de la perte et la joie d’aimer, de croître, de changer, de devenir toujours plus… » (Felix Gonzalez-Torres interviewé par Tim Rollins, in Felix Gonzalez-Torres, New York, A.R.T. Press, 1993).</p> Paris, 2022 Bourse de Commerce - Pinault Collection et éditions Dilecta 176 p., illustré, relié. 22,5 x 28,5
Neuf
Editions Casterman / Collection " Un Auteur-A Suivre " 1985. In-4 cartonnage éditeur de 47 pages au format 23 x 30,5 cm. Couvertures illustrées. Dos carré. Plats et intérieur frais avec cahiers cousus. Couvertures, pages de gardes, illustrations et scénario de Daniel Torres. Très bel état général. Edition originale. Précieux exemplaire enrichi, d'un petit dessin original, datée et signée de Daniel Torres. Les dessins originaux de l'auteur sont peu fréquents.
Site Internet : Http://librairie-victor-sevilla.fr.Vente exclusivement par correspondance. Le libraire ne reçoit, exceptionnellement que sur rendez-vous. Il est préférable de téléphoner avant tout déplacement.Forfait de port pour un livre 7 €, sauf si épaisseur supérieure à 3 cm ou valeur supérieure ou égale à 100 €, dans ce cas expédition obligatoire au tarif Colissimo en vigueur. A partir de 2 livres envoi en colissimo obligatoire. Port à la charge de l'acheteur pour le reste du monde.Les Chèques ne sont plus acceptés.Pour destinations extra-planétaire s'adresser à la NASA.Membre du Syndicat Lusitanien Amateurs Morues
Madrid, Joseph Doblado, 1796. in-8, 6ff.n.ch.- 272pp. Relié vélin ivoire souple de l'époque.
Texte espagnol. Cette édition contient : "Visiones y visita de Torres con Don Francisco de Quevedo..." ; la "Barca de Aqueronte" ; "Coréo del otro mundo..." ; "Sacudimiento de mentecatos habidos y por haber" ; "Historia de historias" ; "Soplo a la Justicia...". Diego de Torres Villaroel (Salamanque, 1694 - 1770) enseignait les mathématiques et l'astrologie dans sa ville natale. Personnage turbulent et amuseur, il s'essaya à toutes les formes de littérature : théâtre, poésie, romans, traités de vulgarisation, pamphlets, hagiographies. L'Inquisition condamna l'un de ses traités de morale en 1743. - Vélin froissé, faux-titre bruni, présentant un ex-libris moderne, à l'encre ; tache sur le titre.
Montréal, Canadian Concerts & Artists Inc., 1948. In-folio (30.2 cm) 16 pages, illustré. Brochure agrafée. Couverture illustrée d'un portrait de Jose Torres légèrement défraîchie. Programme de spectacle avec cet envoi signé du danseur : « Para Diane, en buen ricuerdo sympatico. Jose Torres » et, à la page 14, signature du pianiste : « Très sincèrement F. Elias de Quiros, 15-12-48 ».
S. Mayer JP Caldier Coutrot Décaillot A Palma Torres AF Taisne JP Vanhoove
Reference : 500091043
(2007)
ISBN : 9782916374086
Fondation Gabriel Peri 2007 360 pages 21x2 2x14 8cm. 2007. Broché. 360 pages.
Bon état
MANUFACTURE LIV 2019 224 pages 12x20x2cm. 2019. Broché. 224 pages.
Très bon état
MANUFACTURE LIV 2019 224 pages 12x20x2cm. 2019. Broché. 224 pages.
Très bon état- ouvrage issu de destockage jamais lu mais pouvant présenter d'infimes marques de stockage et/ou de manipulation.expédié soigneusement dans emballage adapté
MANUFACTURE LIV 2019 224 pages 12x20x2cm. 2019. Broché. 224 pages.
Très bon état- ouvrage issu de destockage jamais lu mais pouvant présenter d'infimes marques de stockage et/ou de manipulation.expédié soigneusement dans emballage adapté
MANUFACTURE LIV 2019 224 pages 12x20x2cm. 2019. Broché. 224 pages.
Très bon état
MANUFACTURE LIV 2019 224 pages 12x20x2cm. 2019. Broché. 224 pages.
Très bon état
MANUFACTURE LIV 2019 224 pages 12x20x2cm. 2019. Broché. 224 pages.
Très bon état - L'ouvrage qui n'a jamais été lu peut présenter de légères traces de stockage mais est du reste en très bon état. envoi rapide et soigné dans un emballage adapté depuis France
Glénat 2002 150 pages 22x14x2cm. 2002. Broché. 150 pages.
French édition - petites marques de lecture et/ou de stockage sur la tranche et/ou couverture mais du reste en bon état d'ensemble. - Envoi rapide et soigné dans une enveloppe à bulle depuis la France
Le passage 2008 114 pages 14cmx20 5cmx0 8cm. 2008. Broché. 114 pages. Décider de tout quitter : ville pays amante. Compter sans la résistance des choses. Mais rien ne change jamais à moins de se métamorphoser soi-même. Vous renoncerez donc à être Paul Dietz. Vous vous installerez dans un quartier morose de Manhattan courtiserez une artiste. Vous deviendrez progressivement cet homme sans histoire sans passé envahi par les choses - et par la jalousie. Cette errance dans un temps insaisissable dans des lieux fantasmés ; nourrira le feu d'une passion absolue - avant de s'accomplir dans la brutalité du meurtre
French édition - légères marques de lecture et / ou de stockage mais du reste en très bon état d'ensemble. Expédié soigneusement dans enveloppe à bulles depuis la France
Lavauzelle 2011 272 pages 21x15x2cm. 2011. Broché. 272 pages.
french édition - Expédition soignée dans un emballage adaptée depuis la France
Lavauzelle 2011 272 pages 21x15x2cm. 2011. Broché. 272 pages.
French édition - Expédition soignée dans une enveloppe à bulles depuis la France
Lavauzelle 2011 272 pages 21x15x2cm. 2011. Broché. 272 pages.
french edition - remis sous blister et expédié depuis la France dans emballage adapté
HACHETTE 1974 335 pages in8. 1974. Broché. 335 pages.
FRENCH édition - quelques marques de lecture et/ou de stockage mais du reste en bon état de lecture -Expédition sous blister dans une enveloppe matelassée depuis la France
Lavauzelle 2011 272 pages 21x15x2cm. 2011. Broché. 272 pages.
french edition - l'ouvrage qui n'a jamais été lu peut présenter d'infimes marques de stockage sur couverture et/ou pourtours- Idéal pour offrir car remis sous blister - expédié soigneusement dans un emballage adapté depuis la france