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Loser66Best ResponseYou've already chosen the best response.1
\[[\large \log \sqrt{x^2+y^2}]' = \dfrac{1}{\sqrt {x^2+y^2}} \times \dfrac{d}{dx}(\sqrt{x^2+y^2}) \\ \large = \dfrac{1}{\sqrt {x^2+y^2}} \times \dfrac{1}{2 \sqrt{x^2+y^2}}\dfrac{d}{dx}(x^2+y^2)=....\] [\large \log \sqrt{x^2+y^2}]' = \dfrac{1}{\sqrt {x^2+y^2}} \times \dfrac{d}{dx}(\sqrt{x^2+y^2}) \\ \large = \dfrac{1}{\sqrt {x^2+y^2}} \times \dfrac{1}{2 \sqrt{x^2+y^2}}\dfrac{d}{dx}(x^2+y^2)=....
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
\[[\large \log \sqrt{x^2+y^2}]' = \frac{1}{\sqrt {x^2+y^2}} \times \frac{d}{dx}(\sqrt{x^2+y^2}) \\ \large = \frac{1}{\sqrt {x^2+y^2}} \times \frac{1}{2 \sqrt{x^2+y^2}}\frac{d}{dx}(x^2+y^2)=....\] [\large \log \sqrt{x^2+y^2}]' = \frac{1}{\sqrt {x^2+y^2}} \times \frac{d}{dx}(\sqrt{x^2+y^2}) \\ \large = \frac{1}{\sqrt {x^2+y^2}} \times \frac{1}{2 \sqrt{x^2+y^2}}\frac{d}{dx}(x^2+y^2)=....
 9 months ago

hartnnBest ResponseYou've already chosen the best response.1
same syntax ? no... the first one is \dfrac and 2nd is just \frac \(\dfrac{test}{this }\) `\(\dfrac{test}{this }\)` compared to \(\frac{test}{this }\) `\(\frac{test}{this }\)`
 9 months ago

hartnnBest ResponseYou've already chosen the best response.1
i can see the first one having bold line
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
Stange,, the first one is bold here, the second one not while 1 minute ago it was first normal second bold 0.o
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
\[\dfrac{dummyme}{dontknowhowtodo}\]\[\frac{needtimetopractice}{nodumbanymore}\]
 9 months ago

hartnnBest ResponseYou've already chosen the best response.1
zoom in your page to see the difference
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
yup, different . thanks
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
@thomaster after a long time of writing, nothing pops up, why?
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
I was trying if I could make a bold division bar with normal numerator and denominator :P
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
\[\huge\dfrac{\frac{aaaaaaa}{bbbbbbbbb}}{\frac{ccccccccccccccc}{ddddddddddddd}}\] hihihihi.... quite clear, right/
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
you can make the middle division bar longer by adding some spaces \(\huge\dfrac{~\dfrac{a}{b}~}{\dfrac{c}{d}}\)
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
`\(\huge\dfrac{~\dfrac{a}{b}~}{\dfrac{c}{d}}\)`
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
1~ just a little bit longer, what if I want to make it loooooonger?
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
\(\huge\dfrac{~~~~~~~\dfrac{a}{b}~~~~~~~}{\dfrac{c}{d}}\)
 9 months ago

hartnnBest ResponseYou've already chosen the best response.1
\(He \quad hi\) `\(\dfrac{test}{this }\)` use \quad for longer spaces
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
or `\hspace{20pt}` you can make the space as long as you want by changing the 20
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
\[He\hspace{50pt} hi\]yep, gotit
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
\[\left[\begin{matrix}a & b \\ c & d\end{matrix}\right] *\left[\begin{matrix}a&b\\c&d\end{matrix}\right]=\left[\begin{matrix}1&0\\0&1\end{matrix}\right]\]
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
how to make /+ in order?
 9 months ago

thomasterBest ResponseYou've already chosen the best response.1
more symbols: http://omega.albany.edu:8008/Symbols.html
 9 months ago

caozeyuanBest ResponseYou've already chosen the best response.0
thanks！ It helps, amistre64 's explanation sucks!
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
I saw someone posted something and had a code at the middle of the text without taking another line, for example: sin\theta = \frac {1}{5}. but I don't know how to do. When I write, it always jumps into the next line. Show me, please @e.mccormick
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
Bla bla \(\backslash (\)some latex\) bla bla. That type inline?
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
e.mccormick is sin\(\theta\) and I got it \(\text {thank you}\)
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
and how to make it be bold
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
This is where \tfrac{}{} and \dfrac{}{} can also help. \tfrac{}{}, Text Fraction, means to make it small, like inline text, no matter what. \dfrac{}{}, Display fraction, means make it large, like it was a stand alone equation, no matter what. This line is with \(\frac{1}{2}\) just \frac{}{} This line is with \(\tfrac{1}{2}\) just \tfrac{}{} This line is with \(\dfrac{1}{2}\) just \dfrac{}{} This block is with \[\frac{1}{2}\] just \frac{}{} This block is with \[\tfrac{1}{2}\] just \tfrac{}{} This block is with \[\dfrac{1}{2}\] just \dfrac{}{} Notice that the frac changes if it is inline or in a block, \(\backslash\)[ BLOCK \]. But the dfrac and tfrac do not.
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
Fonts use \mathbb{text}, \mathbf{text}, \mathit{text}, and so on. http://www.codecogs.com/eqneditor shows them all at the top.
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
let me practice \(\tfrac{you}{me}\) and \(\dfrac{you}{me}\) how about \(\frac {you}{me}\)
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
the first and the last are the same, right?
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
The math fonts are for equations, but same ones are there for text. here is why: \textbf{Some text with spaces} \(\textbf{Some text with spaces}\) \mathbf{Some text with spaces} \(\mathbf{Some text with spaces}\) See the spaces and what happens to them in math mode?
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
I can see the difference. b stands for bold?
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
Yes, the first and last are the same. Where the [dt]frac comes in really handy is when you need to make sure one is a large fraction inside another fraction. Or small, and so on. Large inline with text, so it is clear...
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
BoldFace ITalics BlackBoard RoMan TextwriTer
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
Not all of them are supported, like \textsc fails with MathJax.... SmallCaps.
 9 months ago

Loser66Best ResponseYou've already chosen the best response.1
\(\textbf{get nothing, hehe}\) \(\text{now, get a lot, hihi}\)
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
The link is an editor interface.
 9 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
With the t/d fracs you can do \(\dfrac{d}{dx}\left( \dfrac{\dfrac{\tfrac{\pi}{4}+e^x}{x^e}}{14x^6+12x^37i}\right )\) inline and it is still readable.
 9 months ago

caozeyuanBest ResponseYou've already chosen the best response.0
what are you guys talking about, I cannot understand a word!
 8 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
@caozeyuan We are talking about \(\LaTeX\). @Loser66 Attached is what I was saying about the safety bar was attached wrong.
 8 months ago

caozeyuanBest ResponseYou've already chosen the best response.0
@e.mccormick so how can I use it in everyday life e.g. when writing an email or a doc. ?
 8 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
\(\LaTeX\) has many editors, which make it great for writing papers, books, and so on. Especially ones with formulas and graphs. In fact, I linked one in another post recently.
 8 months ago

caozeyuanBest ResponseYou've already chosen the best response.0
Tag me Please! I want to get that! is it for free?
 8 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
Near the bottom of this is a PDF with vectors, all done in \(\LaTeX\) http://openstudy.com/study#/updates/51ed5575e4b00daf471999bb And here is a bit on using the codes to do posts here. http://openstudy.com/study#/updates/51d89020e4b041c5c27459bb The same MathJax plugin can be added to blogs and other sites to do similar things elsewhere.
 8 months ago

e.mccormickBest ResponseYou've already chosen the best response.0
Yes. \(\LaTeX\) is free. For doing papers, I use MiKTeX on Windows as my TeX rendering engine and TeXmaker as my editor. However, to just try it for free you can use one of the online ones. https://www.writelatex.com/ http://www.codecogs.com/latex/eqneditor.php (Equations only, but makes them into grapics!) http://www.scribtex.com/ https://www.sharelatex.com/
 8 months ago
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