# Math Help - LaTex Tutorial

1. Originally Posted by OReilly
I tried $$\therefore [\math] and [tex]\because [\math] which are actually LaTex code for those symbols but as you can see they don't work here. Typing in [tex]\therefore$$ gives $\therefore$

Typing in $$\because$$ gives $\because$

2. Originally Posted by Quick
Typing in $$\therefore$$ gives $\therefore$

Typing in $$\because$$ gives $\because$
Ye, overlooked that back slash

Of course it works:
$\therefore$
$\because$

3. $\because$ it works
$\therefore$LaTeX is great!

4. How do you type in %? My webbrowser didn't wanna display the page when I created a LaTeX formula with % in it as always when something in the LaTeX code is wrong.

5. Originally Posted by TriKri
How do you type in %? My webbrowser didn't wanna display the page when I created a LaTeX formula with % in it like it never wants to do when the LaTeX code is wrong.
$$\%$$ gives $\%$

6. Typing $$\sum_{i\ =\ 0}^n f(i)$$ gives $\sum_{i\ =\ 0}^n f(i)$, a Sigma sign as a sum sign. But how do you do if you want to have a multiplication sign, a Pi sign ( $\Pi$) that works like the sum sign?

7. Originally Posted by TriKri
Typing $$\sum_{i\ =\ 0}^n f(i)$$ gives $\sum_{i\ =\ 0}^n f(i)$, a Sigma sign as a sum sign. But how do you do if you want to have a multiplication sign, a Pi sign ( $\Pi$) that works like the sum sign?
$\prod_{k=1}^{\infty} \frac{1}{k}=0$

8. Is it possible to put a big cross all over the formula to make clear it is not true?

9. Originally Posted by TriKri
Is it possible to put a big cross all over the formula to make clear it is not true?
just say "not equal to"

Such as typing in $$1\neq-1$$ gives $1\neq-1$

10. Can you make some part of the expression appear in another color?

11. Problems with \left and \right:

$\left(\frac{x}{y}\right)$
$\left[\frac{x}{y}\right]$
$\left|\frac{x}{y}\right|$
But $$\left{\frac{x}{y}\right}$$ doesn't work.

12. Originally Posted by TriKri
Problems with \left and \right:

$\left(\frac{x}{y}\right)$
$\left[\frac{x}{y}\right]$
$\left|\frac{x}{y}\right|$
But $$\left{\frac{x}{y}\right}$$ doesn't work.
But:

$$\left\{ \frac{x}{y}\right\}$$

$\left\{ \frac{x}{y}\right\}$

does.

RonL

13. $\lim_{x \to 2^+}$

14. $$\int testing^2 1 \cdot 2 \cdot 3$$

-Dan

15. Originally Posted by topsquark
$$\int testing^2 1 \cdot 2 \cdot 3$$

-Dan
I've had this problem as well, had to stop using LaTeX.

RonL

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