klimenkov Group Title Help me please. one year ago one year ago

1. klimenkov Group Title

How to write in LaTeX this expression? |dw:1362304526322:dw|

2. ParthKohli Group Title

$\displaystyle \hat{(\vec{a},\vec{b})}$

3. ParthKohli Group Title

 \hat{(\vec{a},\vec{b})} 

4. ParthKohli Group Title

Is that what you wanted?

5. klimenkov Group Title

Lol. It does not work in Texmaker. Please look at the mistake.

6. ParthKohli Group Title

No, no! You have to type \begin{math} and \end{math}. Not the dollar signs!

7. klimenkov Group Title

8. klimenkov Group Title

$\hat{(\vec{a},\vec{b})}$

9. ParthKohli Group Title

Tip: Avoid using all those TeXMakers and all when you have to make very simple documents with just text and math. Use http://www.artofproblemsolving.com/Resources/texer.php? and you can simply use $..$ and $$...$$ or text.

10. ParthKohli Group Title

Hmm, in some cases, \vec is actually the vector with the box.

11. klimenkov Group Title

Hm.. It is not very simple. There will be a lot of text and formuals and pictures.

12. ParthKohli Group Title

Then I don't know :-( @UnkleRhaukus will be able to help.

13. klimenkov Group Title

Anyway, thank you for your help. Type something in this topic http://openstudy.com/study#/updates/51331febe4b093a1d948e981 and i will give you a medal.

14. ParthKohli Group Title

$\hat{(\stackrel{\rightarrow}{a},\stackrel{\rightarrow}{b})}$Try this one. \hat{(\stackrel{\rightarrow}{a},\stackrel{\rightarrow}{b})}

15. klimenkov Group Title

Yeah! Can you tell me what you have done?

16. klimenkov Group Title

Hm.. \vec does not work with \hat. What's a pity.

17. ParthKohli Group Title

\stackrel{stuff on the top here}{stuff on the bottom here} is used to write a thing above another. It's very hacky

18. klimenkov Group Title

Oh, now I see it. $$\vec b$$ is lower that $$\vec a$$. If there was a method to combine \hat and \vec...

19. ParthKohli Group Title

Well, this one was the only one I could figure out

20. klimenkov Group Title

(\vec{a}\widehat{\rule{0pt}{3.5mm},\,}\vec{b}) This works like this, but it does not work in OpenStudy.

21. ParthKohli Group Title

That is because OpenStudy has a very limited version of $$\TeX$$ called MathJax.

22. klimenkov Group Title

LaTeX is a very powerful instrument to write furmulas. But such things like this disappoint me.

23. ParthKohli Group Title

Hmm

24. UnkleRhaukus Group Title

 $\widehat{(\vec a,\vec b)}$  $\widehat{(\vec a,\vec b)}$

25. UnkleRhaukus Group Title

 $(\widehat{\vec a,\vec b})$  $(\widehat{\vec a,\vec b})$

26. UnkleRhaukus Group Title

what does it mean?

27. klimenkov Group Title

This is the angle between vector a and b.