Math & Science ⇒ Aligning math with text

[jkastelic]

Hello!

I am typesetting a section of a book in LaTeX however I cannot accurately reproduce attached passage (especially the area marked in red). (The book is not in English, but the text is unimportant so you can just ignore it.)

I've tried tabular and align (amsmath) environments, which can align the two sentences in parentheses, however LaTeX doesn't automatically break the line and ends up in the right margin.

My best solution is simply having the equations on separate paragraphs (see code below) but then the text in parentheses is not vertically aligned.

Code: Select all

$A_{rev}=\int P_z\d V = \int(P_n-\d P)\d V\quad$ zunanji tlak je za infinitezimalno vrednost $\d P$ manjši od notranjega tlaka

$\int(P_n-\d P)\d V = \int P_n\d V-\int \d P\d V \quad$ drugi integral je zanemarljivo majhen

p.s. Do you know how to typeset the second equation, where there is a vertical arrow from P in dPdV to 0?

[frabjous]

If I really wanted to reproduce that, I'd probably use some kind of tabular environment, though I find the style of the original to be rather ugly, and would strongly consider re-doing it.

Code: Select all

\documentclass[10pt]{article}
\usepackage[T1]{fontenc}
\usepackage{cmbright}
\usepackage[utf8]{inputenc}
\usepackage{array}
\usepackage{amsmath}
\renewcommand{\d}{\mathrm{d}}
\begin{document}

\noindent\begin{tabular}{@{}>{$}l<{$}p{3in}}
A_{rev}=\int P_z\d V = \int(P_n-\d P)\d V & zunanji tlak je za infinitezimalno vrednost $\d P$ manjši od notranjega tlaka\\[\baselineskip]
\int(P_n-\d P)\d V = \int P_n\d V-\int \d; \underset{\underset{0}{\downarrow}}{P}\d V & drugi integral je zanemarljivo majhen
\end{tabular}
\end{document}