It is mind blowing book if we study by it I think it is good so you should downlod this book
Great thing is also available in many different languages.
Must download it . Very important for math formulae
It's Good But Trigonometric Ratios Are Wrong! And Many Other Formulas Are Too!!
thanks to giving
Not satisfied with this app.
Add 2 new languages: Uighur and Uzbekistan. Totally, this app supports 36 languages.