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**Raabi****Member**- Registered: 2012-11-22
- Posts: 18

Hi

I am a newbie in the forum, and may not know certain editing tricks. For example, I am facing a number of problems, like;

-> Entering an equation with * Subscripts* - for example; x1, x2 ... etc. where 1 and 2 must appear as Subscripts.

-> Is there any way to enter fractions, like; (a + b + c) / d in proper factional format?

-> What does **[Img]** tag do?

Help will be appreciated.

Raabi

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,328

Hi Raabi;

Subscripts and other forms of math are enetered using latex. For instance:

I use the page here to do it for me:

http://latex.codecogs.com/editor.php

The img tag is used to display an image in your post.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**Raabi****Member**- Registered: 2012-11-22
- Posts: 18

Thanks for the response. Should I download the image from the laTeX and insert into the message box or Copy & Paste?

I tried both; but could not do it. Would you kindly explain a bit! I tried with the **[Img]** tag as well, but could not go ahead. Please help.

Regards

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,328

Hi;

From code codecogs, copy the latex and put it between the math tags:

`"[math] put the latex here[/math]"`

leave out the quotes.

img is copying pictures

`"[img]http://ut-images.s3.amazonaws.com/wp-content/uploads/2008/05/cassinirings.jpg[/img]"`

without the quotes yields

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**Raabi****Member**- Registered: 2012-11-22
- Posts: 18

Oh! I had been trying to put the image from my * local drive* - it seems, does not work. Thank you very much.

Raabi

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,328

Do not use quick post you will see slots to upload pictures.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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