< title page without date > spacing in math mode
## text in math mode

Within math mode text would be not write as normal, because blanks were ignored and chars were printed curisve. A soultion would be this:

... \begin{document} some text $a^{2} + b^{2} \textrm{ text and chars within math } = c^{2} $ \end{document}If the additional usepackage amsmath is used:

... \usepackage{amsmath} \begin{document} some text $a^{2} + b^{2} \text{ text and chars within math } = c^{2} $ \end{document}Hint: Just set a blank after "{" and one before "}".