# A request to Calvin Sir

Hi Calvin Sir,

I have got an Idea. Please introduce a section for previous year papers of International Olympiads and some of the National Mathematics Olympiads of some countries.

Note by Surya Prakash
2 years, 9 months ago

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2^{34} $$2^{34}$$
a_{i-1} $$a_{i-1}$$
\frac{2}{3} $$\frac{2}{3}$$
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\sum_{i=1}^3 $$\sum_{i=1}^3$$
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- 2 years, 9 months ago

There are already other resources that serve this purpose.

- 2 years, 9 months ago

Thank you, Daniel. Daniel can you suggest me on where to start and what books to refer to learn number theory and algebra for proofathon competition.

- 2 years, 9 months ago

If you want books, AoPS has a reasonable number of mathematics books that you can buy on their website. However, they are quite expensive. You may also want to try 105 Algebra Problems, 108 Algebra Problems, and 104 Number Theory Problems. Problems from the Book is also a good albeit hard book. You can find many of the non-AoPS books online as PDF's too.

- 2 years, 9 months ago

@Daniel Liu From which part did u start learning Number theory and what should i do to master Number Theory ?

- 2 years, 9 months ago

Thank You Daniel

- 2 years, 9 months ago

Hey Daniel, Can U please tell me what software do you use to draw Geometric Figures as like in ur problem "Perps In Cyclic Quad". @Daniel Liu

- 2 years, 9 months ago

I use Geogebra.

- 2 years, 9 months ago

Thank You

- 2 years, 9 months ago