mathematics

The Lady's and Gentleman's Diary

The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary rather than just read about it. In short: The Lady's and Gentleman's Diary was a recreational mathematics magazine formed as a successor of The Ladies' Diary and Gentleman's Diary in 1841. It was published annually between 1841 and 1871 by the Company of Stationers; its editor from 1844 to 1865 was Wesley S.

Key takeaways

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

Reference excerpt

The Lady's and Gentleman's Diary was a recreational mathematics magazine formed as a successor of The Ladies' Diary and Gentleman's Diary in 1841. It was published annually between 1841 and 1871 by the Company of Stationers; its editor from 1844 to 1865 was Wesley S. B. Woolhouse. It consisted mostly of problems posed by its readers, with their solutions given in later volumes, though it also contained word puzzles and poetry. The magazine was based in London. It ceased publication in 1871. This should not be confused with Ladies and Gentlemens Diary, or Royal Almanack (1775 to 1786) which was printed by Thomas Carnan and edited by Reuben Burrow and was a short lived competitor to The Ladies' Diary. Kirkman's schoolgirl problem originated in a question in the magazine.

References

External links Lady's and Gentleman's Diary at the HathiTrust digital library. WorldCat record

Worked examples

Example 1 — a first encounter with The Lady's and Gentleman's Diary

Start with the simplest possible case. Write down what The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary

In research: The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary 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: The Lady's and Gentleman's Diary is common in secondary-school and first-year university syllabi. It links to neighbouring topics Annual magazines published in the United Kingdom, Defunct magazines published in the United Kingdom, Magazines disestablished in 1871, so understanding it makes those chapters shorter.
In everyday life: Look for The Lady's and Gentleman's Diary 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.

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How to study The Lady's and Gentleman's Diary in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is The Lady's and Gentleman's Diary in simple terms?

Why does The Lady's and Gentleman's Diary 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 The Lady's and Gentleman's Diary?

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 The Lady's and Gentleman's Diary.