1. Lasaro

In the last line, where “\leq0″ should be replaced by “\geq 0″

2. Cesar

Thanks guy! That’s really help

3. Yep, this helped me ! Thanks!

4. mathguy

Shouldn’t the integers be Z not I?

• You were right, thanks for the comment. I changed it.

Cheers,
Tom

5. Sean

Wow, awesome! Exactly what I needed: thanks!

6. This will really be helpful in writing my algebra and geometry blog, thanks.

Regards,

Mr. Pi

7. Enrique Argones Rúa

Why don’t you choose the more traditional notation \mathds{R}, \mathds{N}, etc.?

For using this you would have to include the package dsfont.

Cheers,

Enrique

8. Joe

THANK YOU! I’ve been digging around for an hour now looking for that. I can be picky about my fonts.

9. Joe

..I should have been more specific: thanks Enrique! The mathbb font is pretty well known, but the font for the more traditional number systems is hard to find.

• Hi,

Not sure if a number set symbol is commonly used for binary numbers. But try the following with any letter:

\usepackage{amssymb}
...
$\mathbb{B}$

Best, Tom.

11. one

Nice, thank you

12. Chewett

Thanks, very useful

13. Senthil

Thanks. Really its help to me.

14. Heni

Hi,how R^n write in Latex? THANK YOU ^^

• Hey Heni,

Thanks for your question. Is this what you were looking for?

\documentclass[11pt]{article}
\usepackage{amssymb}
\begin{document}
$\mathbb{R}^n$
\end{document}
15. Courtney

Hi! In the last line, the set of positive reals should be strictly R_>0, not R_≥0, which represents the nonnegative reals. The difference is subtle, but important

• Fixed! Thanks very much Courtney! Best, Tom.

16. m

Thanks! I found this very useful

• tom