Recent content by Akitirija

Thank you very much, pasmith! I just started studying this, so I hope I can ask you one probably very stupid question: What do you mean by "the initial condition"?

Thank you, Domenico! I'm not sure I entirely understand it, but maybe it becomes more apparent as I learn more :)

Thank you for your answer, Domenico. But is this function not differentiable for all x except 0? And even if there are other points, should the book not mention these points instead of excluding the whole interval after 0?

The problem is from Adam's Calculus (7th Ed). It is an initial value problem, and I solved it: \begin{cases} y'=\frac{3+2x^{2}}{x^{2}} \\ y(-2)=1 \end{cases} \\ \implies y=-\frac{3}{x}+2x+\frac{7}{2} I can see that the solution is not valid for x=0, but the book says that the solutions is...

Thank you for your suggestion, Flannery! I especially like the CWT Crying Towel :) Unfortunately, after having leafed through some analytical calculus books, I have to agree with you about their problems being "unsolvable", at least for me.

Thank you very much for your quick reply, DrDu!

Hi, everyone! Just a quick question to be sure: I want to calculate the electronegativity difference of Na_{2}O,\ \Delta X_{Na_{2}O}, Is this correct: \Delta X_{Na_{2}O}=X_{O}-X_{Na} Or is it: \Delta X_{Na_{2}O}=X_{O}-2*X_{Na} (since there are 2 Na atoms).

Thank you very much, Quantum Braket! I will check out 3000 solved problems in Physics, it sounds like just the book I am looking for.

Thank your for the answer, Quantum Braket. I was not being very clear in my question. I was thinking more about a book that follows to some extent the curriculum of Calculus 1. For example, first chapter consisting of limit problems that can be applied in "real life". A physics text would also...

Hi there, everyone! I'm sure this question has been asked many times before, but I did not really find any similar posts, so I hope you guys will bear with me! I am teaching myself what could be categorized as Calculus 1, using Adams' "Calculus: A Complete Course" along with "Schaum's 3000...

Homework Statement Determine the Miller indices of the cubic crystal plane that intersects the position coordinates C (1, 1/4, 0), A (1, 1, 1/2), B (3/4, 1, 1/4), and all coordinate axes. The Attempt at a Solution This is an example problem with solution from Foundations of...

micromass, thank you so much! That's embarrassing, I think I did too many calculations in one day and just suddenly turned blind! I appreciate your help a lot! Thank you again!

Thank you, Shyan and micromass! micromass, I try to avoid L'Hospital (because I do not think one should use a method that one cannot prove), but I thought that one sometimes had to use it, so I am very happy about your answer. I have to admit, though, that I am still struggling with the...

$$\lim_{x\to 0} \frac{x}{\sqrt{4+x}-\sqrt{4-x}}=2$$ I plotted this equation into WolframAlpha, and it applies L'Hospital and yields, for the nominator: $$\frac{dx}{dx}=2$$ I do not understand this. I have not learned how to use L'Hospital, but I know basic derivation rules, and I do...

I see. Thank you for the clarification!