# Math Help - test & some help needed on LaTex.

1. ## test & some help needed on LaTex.

$\displaystyle \oint^\frac{\pi}{4}_1 (\dfrac {\sqrt{(\sin (x +60^\circ)} + (\cos^2x)} {\csc{{3}{\pi}}x}) \,d\vec{x}$
Just a random string of math. How do i make the integration sign bigger,write $\pi$ over a number eg. pi/4 ,input the degree sign and extend the square root sign(if possible)?

More random playing around, I wanted to see how complicated it can get.
$\begin{array}{rcl}

\displaystyle \Huge\Sigma\oint^\frac{\pi}{4}_1 (\dfrac {\sqrt{(\sin (x +60^\circ)} + (\cos^2x)} {\csc(\frac{\pi}{2}\dfrac{22342}{{1}{\frac{2}{3}}} )x}) \,d\vec{x} =\\ \dfrac{tan^5x}{cosxsinx} + C \end{array}$

2. To make everything bigger, use \displaystyle in your math tags before writing your code. E.g. \displaystyle \int_a^b{f(x)\,dx} = F(b) - F(a) gives $\displaystyle \int_a^b{f(x)\,dx} = F(b) - F(a)$.

To write a fraction, use \frac{}{}, with the numerator in the first set of curly brackets and the denominator in the second. E.g. \frac{\pi}{4} gives $\displaystyle \frac{\pi}{4}$.

To input the degree sign, use ^{\circ}, e.g. 30^{\circ} gives $\displaystyle 30^{\circ}$.

The square root sign is given by \sqrt{}, write everything you want under it inside the curly brackets. E.g. \sqrt{b^2 - 4ac} gives $\displaystyle \sqrt{b^2 - 4ac}$.

3. Originally Posted by arccos
$\int^\pi_1 (\dfrac {\sqrt(\sin (x +60^3) + (\cos^2x)} {\csc3x}) \,dx$

Just a random string of math. How do i make the integration sign bigger,write $\pi$ over a number eg. pi/4 ,input the degree sign and extend the square root sign(if possible)?
$$\displaystyle \int^\pi_1 (\dfrac {\sqrt{(\sin (x +60^3) + (\cos^2x)}} {\csc3x}) \,dx$$ gives

$\displaystyle \int^\pi_1 (\dfrac {\sqrt{(\sin (x +60^3) + (\cos^2x)}} {\csc3x}) \,dx$

Note the \displaystyle and the extra braces used in \sqrt{}

4. As a matter of style, I would probably write

\displaystyle \int^{\pi}_{1} \left(\dfrac {\sqrt{\sin (x +60^{3}) + \cos^{2}(x)}} {\csc(3x)}\right)dx

for

$\displaystyle \int^{\pi}_{1} \left(\dfrac {\sqrt{\sin (x +60^{3}) + \cos^{2}(x)}} {\csc(3x)}\right)dx
$

5. Originally Posted by Plato
$$\displaystyle \int^\pi_1 (\dfrac {\sqrt{(\sin (x +60^3) + (\cos^2x)}} {\csc3x}) \,dx$$ gives

$\displaystyle \int^\pi_1 (\dfrac {\sqrt{(\sin (x +60^3) + (\cos^2x)}} {\csc3x}) \,dx$

Note the \displaystyle and the extra braces used in \sqrt{}
Thanks for the help. Oh and how do i arrange my equations ? When I do a normal paragraphing by spacing it dosent work. There should be a code for this i guess...

6. You could end the LaTeX and start on another line with another LaTeX.

However, you can use the table format too.

\begin{array}{rcl}
a(b+c) + b(a + c) &=& ab + ac + ab + bc \\
&=& 2ab + ac + bc
\end{array}

$\begin{array}{rcl}
a(b+c) + b(a + c) &=& ab + ac + ab + bc \\
&=& 2ab + ac + bc
\end{array}$

Testing a little.

$a(b+c) + b(a + c) = ab + ac + ab + bc \\
= 2ab + ac + bc$

Nope, the \\ doesn't work outside the array command.

7. Originally Posted by arccos
Thanks for the help. Oh and how do i arrange my equations ? When I do a normal paragraphing by spacing it dosent work. There should be a code for this i guess...
I don't really understand what you are asking.
Can you explain a bit more?

8. Originally Posted by Plato
I don't really understand what you are asking.
Can you explain a bit more?
Looks like Unknown008's input is what I wanted to know. I'm getting the hang of this!

9. Originally Posted by Unknown008
You could end the LaTeX and start on another line with another LaTeX.

However, you can use the table format too.

\begin{array}{rcl}
a(b+c) + b(a + c) &=& ab + ac + ab + bc \\
&=& 2ab + ac + bc
\end{array}

$\begin{array}{rcl}
a(b+c) + b(a + c) &=& ab + ac + ab + bc \\
&=& 2ab + ac + bc
\end{array}$

Testing a little.

$a(b+c) + b(a + c) = ab + ac + ab + bc \\
= 2ab + ac + bc$

Nope, the \\ doesn't work outside the array command.
I think it's just easier to do
\begin{aligned}x &= y\\ &= z\end{aligned}

10. Hm... never saw this command. Thank you!