Einleitung in die Theorie der Elliptischen Funktionen by Karl Joseph Bobek

(1 User reviews)   1787
By Abil Kile Posted on Nov 15, 2025
In Category - History
Bobek, Karl Joseph, 1855-1899 Bobek, Karl Joseph, 1855-1899
German
Okay, hear me out. I found this dusty old math book from 1890, and it's surprisingly fascinating. It's not a storybook—it's a deep dive into a specific, beautiful area of advanced mathematics called elliptic functions. The 'mystery' here isn't a whodunit; it's the puzzle of complex curves and integrals that mathematicians like Bobek were obsessed with unlocking. Reading it feels like peeking over the shoulder of a brilliant 19th-century mind at work, trying to map a hidden world of numbers and shapes. It's a total time capsule of scientific thought.
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3. The Content must be used solely for a non-commercial purpose. Although this blanket permission to reproduce the Content is given freely such that no special permission is required, the Bahá’í International Community retains full copyright protection for all Content included at this Site under all applicable national and international laws. For permission to publish, transmit, display or otherwise use the Content for any commercial purpose, please contact us (http://reference.bahai.org/en/contact.html). CONTENTS Baha’i Terms of Use Preface Introduction A Description of the Kitáb-i-Aqdas by Shoghi Effendi The Kitáb-i-Aqdas Some Texts Revealed By Bahá’u’lláh Supplementary To The Kitáb-i-Aqdas The Tablet of Ishráqát Long Obligatory Prayer Medium Obligatory Prayer Short Obligatory Prayer Prayer For The Dead Questions And Answers Synopsis And Codification Of The Laws And Ordinances Of The Kitáb-i-Aqdas Summary Of Contents Synopsis And Codification Notes 1. the sweet-smelling savour of My garment #4 2. We have unsealed the choice Wine with the fingers of might and power. #5 3. We have enjoined obligatory prayer upon you #6 4. nine rak’áhs #6 5. at noon and in the morning and the evening #6 6. We have relieved you of a greater number #6 7. When ye desire to perform this prayer, turn ye towards the Court of My Most Holy Presence, this Hallowed Spot that God hath ... decreed to be the Point of Adoration for the denizens of the Cities of Eternity #6 8. and when the Sun of Truth and Utterance shall set, turn your faces towards the Spot that We have ordained for you #6 9. We have set forth the details of obligatory prayer in another Tablet. #8 10. the Prayer for the Dead #8 11. six specific passages have been sent down by God, the Revealer of Verses #8 12. Hair doth not invalidate your prayer, nor aught from which the spirit hath departed, such as bones and the like. Ye are free to wear the fur of the sable as ye would that of the beaver, the squirrel, and other animals #9 13. We have commanded you to pray and fast from the beginning of maturity #10 14. He hath exempted from this those who are weak from illness or age #10 15. God hath granted you leave to prostrate yourselves on any surface that is clean, for We have removed in this regard the limitation that had been laid down in the Book # 10 16. Let him that findeth no water for ablution repeat five times the words "In the Name of God, the Most Pure, the Most Pure", and then proceed to his devotions. #10 17. In regions where the days and nights grow long, let times of prayer be gauged by clocks and other instruments that mark the passage of the hours. #10 18. We have absolved you from the requirement of performing the Prayer of the Signs. #11 19. Save in the Prayer for the Dead, the practice of congregational prayer hath been annulled. #12 20. God hath exempted women who are in their courses from obligatory prayer and fasting. #13 21. When travelling, if ye should stop and rest in some safe spot, perform ye—men and women alike—a single prostration in place of each unsaid Obligatory Prayer #14 22. Upon completing your prostrations, seat yourselves cross-legged #14 23. Say: God hath made My hidden love the key to the Treasure #15 24. O Pen of the Most High! #16 25. We have enjoined upon you fasting during a brief period #16 26. and at its close have designated for you Naw-Rúz as a feast #16 27. Let the days in...

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Let's be clear from the start: this is a specialized, advanced mathematics textbook published in 1890. There are no characters or plot twists in the traditional sense. The 'story' is the intellectual journey itself. Karl Joseph Bobek, a professor in what is now the Czech Republic, methodically builds the theory of elliptic functions from the ground up. He starts with foundational concepts and guides the reader through increasingly complex theorems and applications. Think of it as a very detailed, technical map of a specific and intricate mathematical landscape.

Why You Should Read It

You won't read this for light entertainment. You read it for the unique experience. It offers a direct, unfiltered look at how a sophisticated mathematical topic was taught and understood over 130 years ago. There's a certain elegance and clarity in older academic writing that can sometimes get lost today. For anyone interested in the history of science or mathematics, it's a primary source document. You get to see the terminology, the notation, and the pedagogical style of a different era. It's a quiet, thoughtful book that demands your full attention.

Final Verdict

This book is exclusively for a niche audience. It's perfect for historians of mathematics, advanced math students curious about original source material, or collectors of antiquarian scientific texts. If you don't have a strong background in higher-level calculus and complex analysis, it will be completely impenetrable. But if you fit that very specific profile, flipping through Bobek's Einleitung is a genuinely cool way to connect with the academic past. It's not a page-turner; it's a brain-engager for a select few.



⚖️ Legacy Content

This masterpiece is free from copyright limitations. It is available for public use and education.

Amanda Lopez
1 year ago

I had low expectations initially, however the clarity of the writing makes this accessible. Exactly what I needed.

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4 out of 5 (1 User reviews )

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