mathematics

C. V. Mourey

C. V. Mourey is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand C. V. Mourey rather than just read about it. In short: C. V.

Key takeaways

C. V. Mourey belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect C. V. Mourey to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of C. V. Mourey from memory before moving on to harder problems.

Reference excerpt

C. V. Mourey (1791? – 1830?) was a French mathematician who wrote a work of 100 pages titled La vraie théorie des quantités négatives et des quantités prétendues imaginaires (The true theory of negative quantities and of alleged imaginary quantities), published in Paris in 1828 and reedited in 1861, in which he gave a systematic presentation of vector theory. He seems to be the first mathematician to state the necessity of specifying the conditions of equality between vectors. Mourey also stated that there exists a more general algebra but no other writings by him have survived. Nothing is known about Mourey's life. The St. Andrews University's researcher Elizabeth Lewis, supposes Mourey was a technician in Paris, but says she cannot positively identify him.

References

Bibliography Crowe, Michael J. (1994). A History of Vector Analysis: The Evolution of the Idea of a Vectorial System. New York: Dover. ISBN 0-486-67910-1. Schubring, Gert (2005). Conflicts Between Generalization, Rigor, and Intuition. Springer. ISBN 978-0387-22836-5. Windred, G. (1929). "History of the Theory of Imaginary and Complex Quantities". The Mathematical Gazette. 14 (203): 533–541. doi:10.2307/3606116. ISSN 0025-5572. JSTOR 3606116. S2CID 125148520.

External links O'Connor, John J.; Robertson, Edmund F., "C. V. Mourey", MacTutor History of Mathematics Archive, University of St Andrews

Illustrations

Worked examples

Example 1 — a first encounter with C. V. Mourey

Start with the simplest possible case. Write down what C. V. Mourey claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to C. V. Mourey before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about C. V. Mourey ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of C. V. Mourey

In research: C. V. Mourey appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses C. V. Mourey in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: C. V. Mourey is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1790s births, 1830 deaths, 19th-century French mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for C. V. Mourey outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study C. V. Mourey in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what C. V. Mourey means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain C. V. Mourey out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is C. V. Mourey in simple terms?

C. V.

Why does C. V. Mourey matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study C. V. Mourey?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on C. V. Mourey.