Math & Science ⇒ Space between Results

[21did21]

hello world,

i have one easy question for you. I my latex document i use this type of equations:

Code: Select all

\begin{equation}
\alpha=\sqrt{2} \rm{ and } \beta=\sqrt{3}
\end{equation}

with this i have a problem: le word "and" is between my results without spaces. it is glued to those it.
in other word, the spaces are not taked into account...

So, how i can insert space between this two results with the word "and" and without this word ?

thanks in advance for your help

[localghost]

Code: Select all

\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage{mathtools}   % loads »amsmath«

\begin{document}
  \begin{equation}
    \alpha=\sqrt{2} \text{ and } \beta=\sqrt{3}
  \end{equation}
\end{document}

Thorsten

[21did21]

thanks for your help (but i haven't use this package because it don't compil...)

i have used:

Code: Select all

\documentclass[a4paper,12pt]{book} 
\pagestyle{plain}                 
\usepackage[latin1]{inputenc}   
\usepackage[section]{placeins} 
\usepackage[T1]{fontenc}       
\usepackage[french]{babel}   
\usepackage[french]{minitoc}   
\usepackage{amsmath}           
\usepackage{graphicx}          
\usepackage{soul}              
\usepackage{color}            
\usepackage[top=2.9cm, bottom=2.9cm, left=2.9cm, right=2.9cm]{geometry} 

[localghost]

thanks for your help (but i haven't use this package because it don't compil...)

Show a complete but minimal example which doesn't compile and not just a document preamble.