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Math theory

Sangaku Maths App is an open educational resource that offers the whole theory of mathematics from Secondary to first courses of technical degrees. An own theory, created by an interdisciplinary team, which stands for very didactic explanations and examples.
Over 1000 printed pages of math theory. The contents are organized in 9 essential branches of mathematics: algebra, geometry, recreational mathematics, calculation and analysis, applied mathematics, probability and statistics, fundamentals, discrete mathematics and number theory. Each is divided into subjects, categorized by difficulty, to help you in your learning process.

More than 500 issues, available in English, Spanish and Catalan, are what make this app a perfect resource to complement your learning.

Category : Education

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Reviews (28)

Mat. O. Nov 6, 2019     

The app is excellent, but... there is some things that must be said. First of all: the contents are too short. And simple. Could not you guys improve this? Make the contents more detailed and didactic? Some, like Functions, deserve more details that can make easiar to understand. Second: more graphs, images and diagrams would be really good and fascinating. In addition, more examples, exercises, and solved exercises can help a lot in learning. But what really makes me uneasy is the fact you guys don't give the necessery information concerning the contents, what makes it incomplete and, in the most times, harder to get into the head. What I have noticed, on the other hand, is that all of this happen most in harder contents.

Ois. C. Dec 25, 2020     

Excellent app with clear explanations. I love to see my classes explained in different ways to understand them better. I did notice some small typos, but nothing bothersome. However, one thing that I would like to bring to your attention is that some equations don't show when holding the phone vertically. I noticed it in the "integrals along a curve" chapter. I saw that in other places (e.g.: matrices) there was a scrollbar allowing me to view the whole thing.

Jan. F. May 18, 2020     

Text and examples didn't do much to make the content clearer or less intimidating, and the interface is like a textbook (boring). It's a good idea to put this in app form, but none of that idea contributes to an improvment over other offerings.

Osw. C. Jun 14, 2019     

I would really appreciate a way to classify each topic in a way that i can learn from basic to advanced beceause sometimes i start reading something and don't understand beceause i haven't read the pre requisites before. Other then that, even if sometimes it is explained more complicated than it is or some signs are not explained, i'm learning alot.

Mar. O. Nov 6, 2018     

This is an excellent app for teaching yourself mathematics. I would prefer more topics (for example, fractal geometry, topology), but these are relatively obscure. All the standard subjects are covered.

Del. D. Oct 24, 2021     

Magnificent. There couldn't be greater app. I would just ask for adding features like exercises in the app for practice. Since it would be somewhat ineffective to learn something without actually knowing how much we can do that. It is especially important for self-taught ones.

Joa. B. Nov 7, 2020     

Quite okay, I must say. It does have adequate amount of details for each topics and subtopics including several sufficiently understandable diagrams and examples. However, it does miss some important details, which I need to research by myself but that's okay.

Roy. Oct 31, 2020     

Good. However, they should add more content. There are sections that are pretty empty like the discrete math section. Adding more sections would be great. Maybe one of computer science or topology. Also, excerises or quizes would be a good addition.

Gab. W. Sep 17, 2021     

Good brief introduction. I was looking for basic information about matrices. This app had what I needed. It is more like a textbook than a program. It contains brief chunks of text about various topics in math. I found that to be useful.

A. G. u. Jan 17, 2019     

Good at explaining particular concepts in maths. But if you're using it as a resource to learn maths it could be slightly improved. For example, one of the first topics is about calculating the rank of the matrix using determinants, but the method of calculating a determinant is used without an explanation of what determinants are. A later topic in a different subsection is about the calculation of determinants, but ideally this should come before the use of it or there should be a link to it

Bas. A. Mar 7, 2019     

Great, I've used it a lot, but it hasn't changed much since I first downloaded it in 2017. I'd love to see improvements and new content. Practice problems would make this app a very strong contender for the best math learning one.

Ire. B. May 2, 2020     

Looks like its a short way of providing some information. But it's not enough for a Math student. A lot of content is missing like Jordan Matrix and Gram Schmidt Process. Add more content maybe some exercises as well and it would be a great app

Ali. Feb 16, 2019     

Easy to look up but not friendly to study. Even if I set the article as viewed, the list of contents have no difference to show what I have read. This will cause some confusing problems.

Lee. C. Aug 9, 2019     

as others have stated, the references are good but the organization of information is impossible to navigate. it would be beneficial to link the topics from a table of contents based on any standard math curriculum.

Lev. F. V. Sep 14, 2018     

The app is very useful and very beneficial for students who wants to learn basic and even complex math branches. It does what its duties to further explain things, and its very easy to use and understand.

Ali. C. Oct 4, 2018     

I really like this app. I think in time the issues people have mentioned will be ironed out. If the errors were corrected and the app more fluid to navigate I would give 5 stars.

Yas. J. May 30, 2020     

Would be better if you arrange all the concepts in some order for example in increasing difficulty order or in order one should learn to understand all the things. Or you can provide a concept tree.

Sno. L. Oct 18, 2019     

It's great, but I think it would be good if the topics could be arranged by their difficulty level and/or by their "learning order", like the one we have in school.

Gol. Aug 17, 2019     

Good app overall, though more subtopics (or more info) could be added as there is a bit missing on matrices like specific row operations. But just keep at it developer, you are doing well.

Gra. A. Aug 6, 2021     

This app is indeed worthy of 4.5 stars. It's very helpful since it gives practical example and explanation... But please try to include additional questions to be solved by the user at the end of each units... But to sum up everything, it's fantastic. Keep it up

Alo. R. Oct 23, 2020     

Loved it's simplicity. The way they designed this app is so simple and its add free also. There is lot more content for me but there is still something missing in it.

δΈ­Le. Dec 4, 2018     

It is a lovely app for those who like to understand more, but can we please have a version where we can download this lovely treasure chest of information. Again beautiful app, but needs an option where you can download. Thank you.

eve. g. Sep 21, 2018     

There seems to be no Rhyme or Reason to the sequence in which the information is provided. Ideally the information should be provided from least complex to most complex. In this app they are just sort of thrown together

Dav. Aug 23, 2020     

It could be enhanced with some assessment feature with excersises to practice within the app. Love the fact it goes straight to the point. Should make a patreon to support the developing of this app, the fact it's free is a good reason for it.

Alf. C. H. Jun 14, 2020     

I love it. It has a lot of topics and I think most of them are well explained. Perhaps some exercises or more examples would make it better, but still I think it is a great app.

Vit. K. Sep 25, 2020     

Amazing and informative. Everything is easy to learn the way explained in. Essential for middle and high school students.

Rya. P. Mar 6, 2019     

i am a physics major & this app is great for succinctly describing various ideas in math. I am able to very quickly & effectively review concepts by looking at them in this app.

Dom. B. Aug 7, 2019     

Very good, straight to the point. However, I saw some typo and mistake. In the Bernoulli distribution, thr combinatorial formula is missing a factorial. In the Gaussian Distribution, there's a "goiod" instead of good.