# Thread: Need help squaring and integrating a function

1. ## Need help squaring and integrating a function

$\mbox{bias}_h(x)=\frac{1}{2}h^2f''(x)k_2+\frac{1}{24}h^4f''''(\xi)k_4$

hi sorry I dont know how to get latex on here. I need the integarted square bias of this function. That is It needs to be squared and then integrated between +and- infinity. If you can do this or show me how to do it the I would be extremely grateful. Could you show your working if you are solving.

2. Originally Posted by markrvr
$\mbox{bias}_h(x)=\frac{1}{2}h^2f''(x)k_2+\frac{1}{24}h^4f''''(\xi)k_4$

hi sorry I dont know how to get latex on here. I need the integarted square bias of this function. That is It needs to be squared and then integrated between +and- infinity. If you can do this or show me how to do it the I would be extremely grateful. Could you show your working if you are solving.
Could you retype it in plain ascii (or raw LaTeX)

CB

3. That is in raw latex I use texshell to write it.

4. Originally Posted by markrvr
That is in raw latex I use texshell to write it.
Then try it in ascii

(is that gibberish what you see on the screen in texshell? - because it is not LaTeX source it should read:

$\mbox{bias}_h(x)=\frac{1}{2}h^2f''(x)k_2+\frac{1}{ 24}h^4f''''(\xi)k_4$

$
\mbox{bias}_h(x)=\frac{1}{2}h^2f''(x)k_2+\frac{1}{ 24}h^4f''''(\xi)k_4
$

CB

5. I dont know what ascii is mate

6. "ASCII" (American Standard Code for Information Interchange- the standard code used in computers for standard keyboard symbols, control, alt, etc.), here, just means ordinary text: int (x^2+ 1)dx for example.

To write what you have in LaTex on this board use [ math ] and [ /math ] (without the spaces) instead of your "$" and "$".