how to make symbols used in differential equations and maths etc character map information needed

[Tony Pursell]

On Sat, 2011-03-05 at 20:49 +0530, Tapas Mishra wrote:
> Hi,
> I wanted to know with respect to a link here
> http://random.irb.hr/signup.php
> if you look at the CAPTCHA section the answer of which it is solution
> of a differential equation given.
> The answer to the CAPTCHA does not needs any special character map.
> 
> But this gave rise to a question in my mind  if there is there some
> math library to enter such things.
> How can I enter such a mathematical thing in a web form.(The above
> link is just an example.)
> 
> 
> I googled but http://www.google.co.in/search?sourceid=chrome&client=ubuntu&channel=cs&ie=UTF-8&q=Math+library+for+Ubuntu
> the link comes with some C libraries for calculations.
> I then checked Gnome Documentation for Character Maps
> http://library.gnome.org/users/gucharmap/stable/gucharmap-usage.html.en
> but it was not helpful for me.
> Then I also checked a page here
> http://en.wikipedia.org/wiki/Unicode_typeface#List_of_Unicode_fonts
> and one more link
> http://computers-technology.helium.com/how-to/12128-how-to-create-special-computer-characters-with-your-keyboard
> but not clear as how to put such mathematical symbols which consists
> of complex differential equations.What font
> do I need to install for typing such characters.
> 
> I use Ubuntu 10.04.
> 
> --
> 

To type a character from Applications > Accessories > Character Map, use
Ctrl-Shift-U (prints a small underlined u) then key the Unicode given in
Character Map, then hit Enter or Return.

Eg Ctrl-Shift-u, 0123, Return, gives ģ.

Is that what you want?

Tony