# How can we write mathematical equation faster? As typing all the thing again and again takes in lot of time and there are so many questions i want to answer. any help will be appreciated.

Jul 14, 2015

One way to save time when writing formulas is to save common formulas in a Scratchpad.

#### Explanation:

On Scratchpads, you can write whatever you like and access them at any point. I've heard of some contributors using this strategy to save common formattign techniques so as not to write and re-write them constantly.

Jul 16, 2015

In addition to scratchpads, I do a lot of copying and pasting.

#### Explanation:

Here's a recent example: http://socratic.org/questions/how-do-you-long-divide-x-2-4x-4-x-2-1

I built up to:

$\text{ " " " " " }$ $x$$\text{ }$ $+ 2$
$\text{ " " }$$- - - - -$
x+2 ) ${x}^{2}$ $\text{ }$$+ 4 x$ $\text{ }$$+ 4$
$\text{ " " }$ $\textcolor{red}{-} {x}^{2} \textcolor{red}{-} 2 x$
$\text{ " " }$$- - - - - -$
$\text{ " " " " "" }$ $2 x$$\text{ }$ $+ 4$
$\text{ " " " " }$ $\textcolor{red}{-} 2 x$$\text{ }$ $\textcolor{red}{-} 4$
$\text{ " " }$$- - - - - -$
$\text{ " " " " " " " " "" " " }$ $0$

by copying and pasting, making changes and additions where needed. In fact this is an answer I made using an old answer saved to a scratchpad. (I replaced the old answer on my scratchpad, then copied the whole thing and pasted it into the public answer.)

If you click "Edit answer"to see the unformatted text, you'll see why I did not want to re-type this!

http://socratic.org/questions/how-do-you-find-the-derivative-of-5-x-2-5-4-2x-x-3-4-x-2-5-5-4-x-3-3158824

Sometimes I copy whole lines, other times just expressions that were tedious to type or format.

Jul 26, 2015

Found a cool way of writing long division format!

#### Explanation:

I wanted to find a better format to use for longdivision answers and I think I found a very cool-looking one.

Check it out

$\text{ " " " " "x" ""+} 2$
x+2) stackrel("----------------------")(x^2 + 4x + 4)
$\text{ " " " } \textcolor{red}{-} {x}^{2} \textcolor{red}{-} 2 x$
" " " " stackrel("------------------------------")
$\text{ " " " " }$ $/ \text{ "2x +} 4$
$\text{ " " " " " " " } \textcolor{red}{-} 2 x \textcolor{red}{-} 4$
" " " " " " " "stackrel("------------------------")#
$\text{ " " " " " " " " " " " " } 0$

This is probalby the best combination of symbols and syntax I could come up with, but if you ask me, I say it looks great! :D