How to insert new line, please :D

Question

parthkohli · Answer

Use "\".
```
1\ 2 \ 3 \ 4
```
yields$$1 \ 2 \ 3 \ 4$$

parthkohli · Answer

Similarly, you may start a new $\LaTeX$ bracket again. So,
```
$$1$$$$2$$$$3$$$$4$$
```
yields$$1$$$$2$$$$3$$$$4$$

parthkohli · Answer

Notice how \ is much more convenient if you want to use lesser spacing between two lines. :)

anonymous · Answer

Thank you @ParthKohli :)

parthkohli · Answer

You're welcome :)

anonymous · Answer

I was always disturbed by lengthy spacing between eqs before.

parthkohli · Answer

Me too! Another tip for you.
```
Right:
$$x + 3 = 8$$$$\implies x = 8 - 3 = 5$$
```
The above is better since this doesn't do a lot of spacing between two equations. Here's what you should do.
```
Wrong:
$$x + 3 = 8$$

$$\implies x  = 8 - 3 = 5 $$
```

hartnn · Answer

$hi\hello\testing\1\2\3$

parthkohli · Answer

Let's compare the outputs of both 'right' and the 'wrong'.

Right -$$x + 3 = 8$$$$\implies x = 8 - 3 = 5$$
Wrong -$$x + 3 = 8   $$

$$\implies x  = 8 - 3 = 5$$

parthkohli · Answer

Another good way is the following:
```
x + 3 = 8 \ \implies x = 8 - 3 = 5
```

anonymous · Answer

Wow, thanks for the bonus tip. What about making equals aligned. Is there a way?

kinggeorge · Answer

To make equals aligned, it's a little bit weirder. There are two ways that stand out to me.

1: `f(x)=4x+7(x+3) \ f(x)=4x+7x+21 \ f(x)=11x+21` which outputs$$f(x)=4x+7(x+3) \ f(x)=4x+7x+21 \ f(x)=11x+21$$The downside to this, is that you always have to have the same stuff before the equals sign. 

2. `\begin{aligned} f(x)=32 &=4x+7(x+3) \ &=4x+7x+21 \ &=11x+21 \ 32-21&=11x \ 11&=11x \ x&=1 \end{aligned}` which outputs $$\begin{aligned} f(x)=32 &=4x+7(x+3) \ &=4x+7x+21 \ &=11x+21 \ 32-21&=11x \ 11&=11x \ x&=1 \end{aligned}$$You start with `\begin{aligned}` and end with `\end{aligned}`. To start a new line, you use `\` and wherever you put the `&` sign, that's where it lines things up. In this case, I put them in front of the equals signs. This method gives you much more flexibility, but it takes longer to type.

anonymous · Answer

Yaay, thanks @KingGeorge !

kinggeorge · Answer

You're welcome.

parthkohli · Answer

That's something new I learned; I've heard only of `\begin{align} `.

kinggeorge · Answer

Technically speaking, they're almost the same, but you should use "aligned" if you're working in a second environment. So if you have an equation environment, you need to use "aligned" to align your lines. In the standard math mode, I think "align" is technically more correct, but they have the same effect in math mode, so I just always use "aligned."