Add dropdown list value(option) dynamically using jquery
What is the best way to add options to a select from a JavaScript object with jQuery?
Is a constant condition more costly than switching shaders? As opposed to the generic polynomial form for utilizing the Eisenstein Criterion ($a_nx^n+a_{n-1}x^{n-1}+\dots+a_0\in\mathbb{Z}[x]$ is irreducible in $\mathbb{Q}$) how do we prove that if $p$ is a prime, $x^{p-1}+x^{p-2}+\dots+x+1$ is irreducible over $\mathbb{Q}$? UK visa refusal on V 4.2 a + c (and sometimes 'e') Show that a Cauchy sequence has a fast-Cauchy subsequence Show that $\mathbb{Z}[i]/(2+3i)$ is a finite field.    By applying some isomorphisms and realizing $\mathbb{Z}[i]$ as the quotient ring of $\mathbb{Z}[x]/(x^{2}+1)$, I found that:  $\mathbb{Z}[i]/(2+3i) \cong \mathbb{Z}[x]/(x^2+1,2+3x)$  However, I run into trouble as I can't divide $x^{2}+1$ by $2+3x$ in $\mathbb{Z}[x]$. What would be another way to approach the problem?  Thanks for the help. To EAV or not to EAV? What is a single word in English which means to look down on others (due to their younger age, lower socio-economic position, lesser experience, etc)    Not look down upon everyone else in general, but look down upon some particular person due to a feeling of superiority of oneself over them ( this superiority may come from the fact that one feels has more money, talent, etc)?    By "look down upon" I don't mean just the feeling of having superiority over another, but acting to them in a manner that reflects this pride as well (for example, perhaps he acts very rudely to them, since he feels superior to them and feels he can get away with it, or he feels it doesn't matter at all due to his superiority) Dual-system Windows and Ubuntu I did dual boot with Windows 7 &amp; Ubuntu 14.04. I get both in boot menu but can't boot into Windows 7. The primary drive where Windows 7 was configured now shows to be logical drive with all files in it. How to resolve it ?  This is what it shows:  irshad@irshad-desktop:~$ lsblk NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT sda      8:0    0 465.8G  0 disk      ├─sda1   8:1    0  58.6G  0 part /media/irshad/B2E08E69E08E339F     ├─sda2   8:2    0     1K  0 part      ├─sda5   8:5    0 195.3G  0 part /media/irshad/8E90A6A690A6946D     ├─sda6   8:6    0 182.8G  0 part /media/irshad/7650B08250B04B1F    ├─sda7   8:7    0    25G  0 part /    └─sda8   8:8    0     4G  0 part      sr0     11:0    1  1024M  0 rom     I tried to run update-grub but I get the following result.  $ sudo update-grub  Generating grub configuration file ...  /etc/grub.d/06_custom: 31: /etc/grub.d/06_custom: function: not found  /etc/grub.d/06_custom: 34: /etc/grub.d/06_custom: save_env: not found  /etc/grub.d/06_custom: 36: /etc/grub.d/06_custom: Syntax error: "}" unexpected How to mix three different shaders on the same material? So I came across some difficulties with the &quot;Mix shader&quot; node in cycles. I have 3 textures on a label: gold, paper and rough black letters.  How can I mix these effects? I can make 2 textures work together, but not the 3rd one. Here's the node graph.  Here's the reference. References in Chapter Titles Localizing Dynamic Plural Noun messages (e.g. "5 Items Processed") on iPhone using Objective-C Splitting string into pair of characters in Ruby A worker carries two bags. Each of the bags initially contains N nails. Whenever the worker needs a nail, he takes it from a bag picked at random. At some point the worker picks an empty bag. Find the probability that the other bag contains exactly m nails.  My reasoning:  The desired probability: $C_2^1 \cdot P(|A| = 0\ and\ |B| = m)$, where A, B - sets of nails in each bag. Then we can "divide" this probability (I suppose that I deal with independent events):  $P(|A| = 0\ and\ |B| = m) = P(|A| = 0) \cdot P(|B| = m);$  $P(|A| = 0) = (\frac{1}{2})^N$, where $|A| = |B| = N$ (initial condition).  $P(|B| = m) = (\frac{1}{2})^{N - m}$  Result: $C_2^1 \cdot P(|A| = 0\ and\ |B| = m)$ = $C_2^1 \cdot (\frac{1}{2})^{2N - m}$  Am I wrong or it is correct? Obtaining a formula for prediction limits in a linear model (i.e.: prediction intervals) Let's take the following example:  set.seed(342) x1 &lt;- runif(100) x2 &lt;- runif(100) y &lt;- x1+x2 + 2*x1*x2 + rnorm(100) fit &lt;- lm(y~x1*x2)   This creates a model of y based on x1 and x2, using a OLS regression.  If we wish to predict y for a given x_vec we could simply use the formula we get from the summary(fit).  However, what if we want to predict the lower and upper predictions of y? (for a given confidence level).  How then would we build the formula? I find I have to scroll a lot to move the text of my page compared to Windows where I can choose the speed of the mouse wheel.   Does Ubuntu have a similar utility and if so how can I access it? Show that $\dim H^0(\mathbb{P}^n, \mathcal{O}_{\mathbb{P}^n}(m)) = {n + m \choose n}$ if $m \geq 0$, and $0$ otherwise. [Probability]need help to understand the following expression So assume $Y$ and $X$ are exponentially distributed with parameters $y_1$, and $x_1$ respecitively.  assume c is a constant.  I am having huge trouble to understand the integration of the following expression.  $P(Y&lt;c/u(X))$  $=\int_{t}^{\infty}f_X(x)\int_{0}^{c/u(x)}f_Y(y)dydx +\int_{0}^{t}f_X(x)\int_{c/u(x)}^{\infty}f_Y(y)dydx$  where t is the cross-point that $u(x)$ change sign    here $c/u(x)$ is given by the plot below, t is the point crossing the zero:   Confusion:   I don't understand the second integration of the second term "$\int_{c/u(x)}^{\infty}f_Y(y)dydx$", this isn't right because Y an X only defined for y>0, and x>0. So it's the first quadrant in this plot. The generic off-topic flag reason has different wording in the Android app Code coverage for wrapper class is 0% Since Newton's law of gravitation can be gotten out of Einstein's field equatons as an approximation, I was wondering whether the same applies for the electromagnetic force being the exchange of photons. Is there an equation governing the force from the exchange of photons? Are there any links which would show how the Coulomb force comes out of the equations for photon exchange? I know that my question is somewhat similar to the one posted here , but it doesn't really have an answer to my question specifically.