# Thread: My english sets an early limit to my describtion, sorry

1. ## Re: My english sets an early limit to my describtion, sorry

$\frac{3}{4}$

Oh I got it now, thx! I'll try to write the whole thing now

2. ## Re: My english sets an early limit to my describtion, sorry

Originally Posted by BrainSearch
{3}{4}({4a}{a}+{ab}{3}-{4ab}{3}-b)
If you type [TEX]\left(\frac{3a}{4}-b\right) [/TEX] you will get $\left(\frac{3a}{4}-b\right)$

On the toolbar you see the button $\boxed{\Sigma}$ that will give you [TEX] [/TEX] tags.

3. ## Re: My english sets an early limit to my describtion, sorry

You need a backslash, not forward slash. Try \frac{3}{4}

4. ## Re: My english sets an early limit to my describtion, sorry

How do I write "a*a" ?

5. ## Re: My english sets an early limit to my describtion, sorry

You could try "a \cdot a" or "a \times a" or even "a^2"...

6. ## Re: My english sets an early limit to my describtion, sorry

$\frac{3}{4}$( $\frac{4a^2}{a}$+ $\frac{ab}{3}$- $\frac{4ab}{3}$-b^2

7. ## Re: My english sets an early limit to my describtion, sorry

I forgot to wrap up with a ")", and the end was'nt right. But I'm improving, thx. My pc dies now, I have no charger, I hope to get more help from you later. Thank you so much for your patience!

8. ## Re: My english sets an early limit to my describtion, sorry

Originally Posted by BrainSearch
$\frac{3}{4}$( $\frac{4a^2}{a}$+ $\frac{ab}{3}$- $\frac{4ab}{3}$-b^2
I assume you mean \displaystyle \begin{align*} \frac{4a^2}{9} \end{align*}. Otherwise you are correct. Now collect your like terms.

Also, it's best to write your entire mathematical expression in the tex tags.

9. ## Re: My english sets an early limit to my describtion, sorry

Originally Posted by Prove It
I assume you mean \displaystyle \begin{align*} \frac{4a^2}{9} \end{align*}. Otherwise you are correct. Now collect your like terms.

Also, it's best to write your entire mathematical expression in the tex tags.
Yea thats what I meant, made a mistake as I was in a hurry.

10. ## Re: My english sets an early limit to my describtion, sorry

Originally Posted by BrainSearch
Yea thats what I meant, made a mistake as I was in a hurry.
So now collect your like terms to simplify...

11. ## Re: My english sets an early limit to my describtion, sorry

First, you have to start and end with [ t e x ] and [ \ t e x ] tags- without the spaces, which I put on so it would not be interpreted as "Latex" tags and so you could see them. Also you need to put the numerator and denominator in "braces", { }. [ t e x ]\frac{3}{4}[/ t e x] without the spaces gives $\frac{3}{4}$.

There is a Latex tutorial at Physicsforums FAQ

12. ## Re: My english sets an early limit to my describtion, sorry

Originally Posted by HallsofIvy
First, you have to start and end with [ t e x ] and [ \ t e x ] tags- without the spaces, which I put on so it would not be interpreted as "Latex" tags and so you could see them. Also you need to put the numerator and denominator in "braces", { }. [ t e x ]\frac{3}{4}[/ t e x] without the spaces gives $\frac{3}{4}$.

There is a Latex tutorial at Physicsforums FAQ
Ok I think I've got it, thx!

13. ## Re: My english sets an early limit to my describtion, sorry

Originally Posted by BrainSearch
Trying to write "3/4", this is what I get: $/frac{3}{4}$
[TEX]\frac{3}{4} [/TEX] gives $\frac{3}{4}$
Look at the tool-bar the icon $\boxed{\Sigma}$ gives [TEX] [/TEX] the wrap.