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Feb
3
awarded  Nice Question
Jan
28
awarded  Nice Question
Dec
25
comment What is the limit of $f(x)=\lim_\limits{n\to \infty}\frac{x^n}{x^n+3}$ when $x$ tends to a certain point?
Please don't write things like $x^n = \infty$.
Dec
22
awarded  Enlightened
Dec
22
awarded  Nice Answer
Dec
22
revised Fourier series for $\sin x$ is zero?
deleted 1 character in body
Dec
22
answered Is it 'more rigorous' to perform definite integrations, rather than indefinite integration while solving ODEs?
Dec
21
accepted What kind of object is the push forward of a vector field?
Dec
20
asked What kind of object is the push forward of a vector field?
Dec
7
comment How to determine if an equation is algebraically solvable?
I know that. What I tried to say is that just because a polynomial is of degree $> 4$ doesn't mean it isn't algebraically solvable, only that there is no general solution for all polynomials of that degree.
Dec
7
comment How to determine if an equation is algebraically solvable?
So $x^5-1=0$ doesn't have a closed form solution because it has degree 5?
Oct
24
awarded  Yearling
Oct
16
answered Solving an equation of real numbers
Oct
9
comment Why do we use square in measuring a qubit with probability?
@HamedBaghalGhaffari: Whether or not it's an advantage is irrelevant; the reason we use the squares is that this is how the world works; the laws of physics, which are found from experiment, say so.
Sep
30
comment Different ways finding the derivative of $\sin$ and $\cos$.
Do you mean you define $\cos$ and $\sin$ as the real and imaginary parts of $e^{ix}$, or the other way around?
Sep
21
awarded  Notable Question
Sep
10
revised What is $2!!!!!!!!!!!!!!!!!!!!$… (up to?
edited title
Aug
22
answered Proof for parallelogram law of vector addition
Aug
22
comment Proof for parallelogram law of vector addition
Vectors are a purely mathematical construct. You seem to be asking about the superposition principle, which is the physical fact that forces add like vectors. Don't get it backwards! You seem to be implying that vectors add like they do because of the superposition principle, but it's the other way around: we represent forces with vectors because addition of forces is just like addition of vectors. In any case, I think you should make your question clearer, because apparently no one understood what you were asking.
Aug
22
comment Where does this sequence $\sqrt{7}$,$\sqrt{7+ \sqrt{7}}$,$\sqrt{7+\sqrt{7+\sqrt{7}}}$,… converge?
This is fine if you've proved it converges, but I'm not sure OP has done that.