Math & Science ⇒ Regarding subscript and inequality

[aquafina]

Hello,

Please help me with these 2 questions:

Q1. To output x greater than equal to y, I use $x \geq y$. Output is correct, but x and y are displayed in italics. How can I get regular x and y (i.e. NOT in italics).

Q2. How to output something like P subscript {x greater than equal to y}. Somehow P_{$x \geq v$} is not working.

Thank you.

[Stefan Kottwitz]

Hi aquafina,

welcome to the board!

It's very common to write variables in italic. Have a look at books - do you find any math book where variables have the same font as the text, such that "any" looks like the product of a, n and y?

Also, write $P_{x \geq v}$. Subscripts require math mode. If it's really necessary it's possible, but at first think over using math italic font for math expressions.

Stefan

[aquafina]

Thanks Stefan. Your post was very help.
Yes, it surely makes sense to have variables in italics