mathematics

Ibn al-Yasamin

Ibn al-Yasamin 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 Ibn al-Yasamin rather than just read about it. In short: Abu Muhammad 'Abdallah ibn Muhammad ibn Hajjaj ibn al-Yasmin al-Adrini al-Fessi (Arabic: ابن الياسمين) (died 1204), more commonly known as ibn al-Yasmin, was a Maghrebi mathematician. He was born in Fez and received his education in Fez and Sevilla, maybe that’s why some historians refer to him as “al-Ishbili”.

Key takeaways

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

Reference excerpt

Abu Muhammad 'Abdallah ibn Muhammad ibn Hajjaj ibn al-Yasmin al-Adrini al-Fessi (Arabic: ابن الياسمين) (died 1204), more commonly known as ibn al-Yasmin, was a Maghrebi mathematician. He was born in Fez and received his education in Fez and Sevilla, maybe that’s why some historians refer to him as “al-Ishbili”. Little is known of his personal life except that he was born into a Berber family. He is well known for his crucial contribution in developing Ghūbari numerals (West “Arabic” numerals), which are currently used in most parts of the world. Besides mathematics, he also became famous in literature, law, and particularly in Andalusian poetry.

References

Worked examples

Example 1 — a first encounter with Ibn al-Yasamin

Start with the simplest possible case. Write down what Ibn al-Yasamin 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 Ibn al-Yasamin 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 Ibn al-Yasamin 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 Ibn al-Yasamin

In research: Ibn al-Yasamin 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 Ibn al-Yasamin 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: Ibn al-Yasamin is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1204 deaths, 12th-century Berber people, 12th-century mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Ibn al-Yasamin 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Ibn al-Yasamin” →

Affiliate

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

How to study Ibn al-Yasamin in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ibn al-Yasamin 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 Ibn al-Yasamin out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ibn al-Yasamin in simple terms?

Why does Ibn al-Yasamin 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 Ibn al-Yasamin?

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 Ibn al-Yasamin.