Posting code, formulas, equations in blog posts

To post code snippets or formulas or equations I was finding the format loose when I save the post. I checked out any way to highlight the code or preserve the program structure to make it readable neat but I found it tough. Then, after a few trial and errors , I got a way for this. You are lucky and would not find it tough my way , if you have your own webspace. I still now had not.

Steps to post the code , program, formulas, equations without losing format structure or readability on free blog spaces is to :-

Step #1: Switch to HTML mode

Step #2: Type the < pre > and < /pre > tags.
Step #3: Copy the code or equation or whatever you would like to preserve format.
Step #4: Open http://www.htmlconvert.net/, select filter tags option and paste the copied. click convert.

Step #5: Copy the converted and paste it between < pre>  and </ pre> tags and switch back to visual mode in editor.
Step #6: Now , publish and Hope you have the format preserved.

Let me know your thoughts.

Other good reads at :
http://www.thunderguy.com/semicolon/wordpress/code-markup-wordpress-plugin/
http://en.forums.wordpress.com/topic/problem-embedding-html-code-into-blog
http://wordpress.jdwebdev.com/blog/code-in-posts/
http://codex.wordpress.org/Writing_Code_in_Your_Posts