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Das «Taschenbuch der Mathematik» von Bronstein/Semendjajew, meist einfach «Der Bronstein» genannt, war DAS mathematische Nachschlagewerk und Formelsammlung für Generationen von Studenten und Praktikern der Ingenieur- und Naturwissenschaften. Dieses Exemplar stammt aus der Studienzeit des Sekretärs.
Der SHARP PC-1403H aus derselben Epoche konnte in BASIC (und Maschinensprache) programmiert werden und hatte einen beeindruckenden Arbeitsspeicher von 32KB.
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The Bronstein/Semendjajew "Pocket Book of Mathematics" (Taschenbuch der Mathematik), usually simply called "The Bronstein", was THE mathematical reference book and collection of formulas for generations of students and practitioners of engineering and natural science. This copy dates from Secretary’s college days.
The SHARP PC-1403H from the same era could be programmed in BASIC (and machine language) and had an impressive RAM of 32KB.
"So much depends
upon
a red wheel
barrow"
William Carlos Williams
When I walked the dog today, the wheelbarrow was gone. There's "no ideas but in things", but things just disappear. Meanwhile I know what the quote means to me and maybe what it means to others, but still I don't know how to translate it into German. Luckily I don't need to.
The point in translation and as well in photography is to make others believe you solved an equation, like a=b-x, but neither translation nor photography is like mathematics.
Still I try hard every day.
The Mathematical Bridge, also known as Newton's bridge, Queen's College Cambridge UK. It looks like an arch but is made of straight timbers.
Pont du Gard.
A UNESCO World Heritage Site since 1985 and 'Grand site de France®' since 2004.
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The bridge was designed by William Etheridge, and built by James Essex in 1749. It has been rebuilt on two occasions, in 1866 and in 1905, but has kept the same overall design. Although it appears to be an arch, it is composed entirely of straight timbers[4] built to an unusually sophisticated engineering design, hence the name.
The Penrose Paving is constructed from just two different diamond-shaped granite tiles, each adorned identically with stainless steel circular arcs. There are various ways of covering the infinite plane with them, matching the arcs. But every such pattern is non-repetitive and contains infinitely many exact copies of what you see before you.
Mathematical Institute, Oxford
Thank You Deep Dream Generator. Yes I was a math nerd back in the days. I hope I don't bore you with this series.
Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (3/14 in the month/day format) since 3, 1, and 4 are the first three significant digits of π.
It was founded in 1988 by Larry Shaw, an employee of the Exploratorium. Celebrations often involve eating pie or holding pi recitation competitions. In 2009, the United States House of Representatives supported the designation of Pi Day. UNESCO's 40th General Conference designated Pi Day as the International Day of Mathematics in November 2019.
The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics and the earliest known use of the Greek letter π to represent the ratio of a circle's circumference to its diameter was by Welsh mathematician William Jones in 1706. It is approximately equal to 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, and is spelled out as "pi". It is also referred to as Archimedes' constant
Being an irrational number, π cannot be expressed as a common fraction, although fractions such as 22/7 are commonly used to approximate it. Equivalently, its decimal representation never ends and never settles into a permanently repeating pattern. Its decimal (or other base) digits appear to be randomly distributed, and are conjectured to satisfy a specific kind of statistical randomness.
It is known that π is a transcendental number: it is not the root of any polynomial with rational coefficients. The transcendence of π implies that it is impossible to solve the ancient challenge of squaring the circle with a compass and straightedge.
Ancient civilizations, including the Egyptians and Babylonians, required fairly accurate approximations of π for practical computations. Around 250 BC, the Greek mathematician Archimedes created an algorithm to approximate π with arbitrary accuracy. In the 5th century AD, Chinese mathematics approximated π to seven digits, while Indian mathematics made a five-digit approximation, both using geometrical techniques. The first exact formula for π, based on infinite series, was discovered a millennium later, when in the 14th century the Madhava–Leibniz series was discovered in Indian mathematics.
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Il 14 marzo (o 3,14) è il giorno del Pi greco: una festa per chi ama la matematica
Il simbolo che conosciamo fu usato per la prima volta circa 250 anni fa, dal matematico gallese William Jones nel trattato A New Introduction to Mathematics (1706). π è l'iniziale dei termini greci περιφέρεια, "periferia", e περίμετρος, "perimetro", con riferimento alla circonferenza; ma anche del filosofo e matematico Pitagora. Prima di allora per riferirsi alla costante si ricorreva a complesse perifrasi come: "la quantità che quando si moltiplica per il diametro, dà la circonferenza".
IL CALCOLO DEI SUOI DECIMALI HA FATTO IMPAZZIRE INTERE GENERAZIONI. π è irrazionale, cioè non esprimibile come una frazione di due numeri interi: le 100 cifre riportate qui sopra sono insomma uno sforzo contenuto, rispetto a un numero che procede in apparenza all'infinito. Il record attuale di decimali verificati è di 22.459.157.718.361, frutto del lavoro di un centinaio di giorni di un supercomputer svizzero.
A branch of mathematics focused on the study of shapes, sizes, relative positions, and the properties of space.
Texture By Joes Sistah
The Mathematical Bridge is the popular name of a wooden bridge across the River Cam, between two parts of Queens' College, Cambridge. Its official name is simply the Wooden Bridge.
The bridge was designed by William Etheridge, and built by James Essex in 1749. It has been rebuilt on two occasions, in 1866 and in 1905, but has kept the same overall design.
The original "mathematical bridge" was another bridge of the same design, also designed by James Essex, crossing the Cam between Trinity and Trinity Hall, where Garret Hostel bridge now stands.
This image is part of my series Juxtaposition.
Juxtaposition places two or more things side by side to elicit a response within the audience's mind.
To see more in this series visit Juxtaposition,
preferably take the slideshow
The Mathematical Bridge is the popular name of a wooden footbridge in the southwest of central Cambridge. It bridges the River Cam and joins two parts of Queens' College.
I have always granted myself the freedom to exercise artistic license and pursue whatever brings me joy. Currently, shots from my cellphone and digital AI artwork fulfill that purpose, at least for the time being.
If in doubt which is my work and which is Generative AI, just look for the watermark on my photography.
- Generative AI art
_upscayl_4x_realesrgan-x4plus-anime
A oft shot image of the Mathematical Bridge in Cambridge. Nothing original here, but why not, like thousands of other photographers!
In Mathematics, if two lines are PARALLEL, they do not meet each other, or do NOT TOUCH each other.
If we defined "ROMANTIC RELATIONSHIP" as "touching someone's heart," then there wasn't such a relationship when a couple's hearts were not touching. So, can we say "the relationship is parallel?"
If it is so, this image represents a COMPLICATED RELATIONSHIP with THREE people.
Mathematical Institute, Andrew Wiles Building, University of Oxford (UK).
All rights reserved - © Judith A. Taylor
My web site : Fine Art Mono Photography
Sited next to Queens College, this wooden bridge over the River Cam was originally built in 1749, and was rebuilt in 1905 to the same design. It is an example of a voussoir arch bridge.
Minolta Autocord, yellow filter, Kentmere 100, Caffenol CL-CS, 15°C. starting temperature, 45 minutes.
Inside the Mathematics Institute at Oxford. We were privileged to be given a tour of this extraordinary building. Very Escher like in it's communications corridors - except they all go somewhere! Full of light which is channelled to the different floors via glass crystal shaped structures which give fabulous reflections. It is an amazing structure. What a place for some of the best brains to flourish!!!
At Queens' College, Cambridge.
According to Wikipedia:
"Popular fable is that the bridge was designed and built by Sir Isaac Newton without the use of nuts or bolts, and at some point in the past students or fellows attempted to take the bridge apart and put it back together" (and had to use bolts).
However, "this story is false: the bridge was built of oak in 1749 by James Essex the Younger (1722–1784) to the design of the master carpenter William Etheridge (1709–1776), 22 years after Newton died."
The riverside building to the right dates to around 1460.
Instead of the main road, you can use a ginnel to get to Williamson Park that retraces the route used by the quarry workers in the 19th century. Unexpectedly I saw the back of the Ashton Memorial.
The Ashton Memorial is, by chance, close to the mathematical center of Great Britain, if you exclude the Isle of Man. To paraphrase a favorite actor, "not a lot of people know that."