what is object based ?

procedure oriented programming
object oriented programming
objects

can we use object oriented method to slove fdm fvm fem method?

vim study

1. change the background color

:colorscheme desert
one can also finish typing up to  :colorscheme   then use tab to choose inbuild backgrounds

2. separate the screen horizontally/vertically

:sp
:vs

3.tabularize the text:

as shown in stackoverflow below:
http://stackoverflow.com/questions/8964953/align-text-on-an-equal-sign-with-vim
 using tablar is very easy to align the text on specific symbol

after install one can align the text just by:

:Tab /=

3.  change font size on the fly (03-07-2015)

http://stackoverflow.com/questions/18138536/can-vim-zoom-in-and-zoom-out

4. how to check spells on the comments?