horizontal alignment
I have a right-aligned text (in a right-to-left language) and need to shift it to the left (it is actually a signature under the preface of a book).
if I use flushleft environment, it goes to the left but it also becomes left-aligned while I need to have it right-aligned something like below:
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\documentclass[twoside]{book}
\usepackage{amsmath}
\begin{document}
\begin{equation}
\hspace*{-10cm} \text{Some big equation}
\end{equation}
\begin{equation}
\text{Some big equation}
\end{equation}
\end{document}]
With align
\documentclass[a4paper,12pt,twoside]{book}
\newcommand{\MyLeftRoundBracket}{(}
\newcommand{\MyRightRoundBracket}{)}
\newcommand{\MyLeftSquareBracket}{[}
\newcommand{\MyRightSquareBracket}{]}
\usepackage{amsmath}
\begin{document}
\hspace*{-3cm}\vbox{\begin{align}\label{eq:CIR_Expected_Return_Variance_Spread}
^{Spread}_{CIR}\sigma^2(X^L,X^U,c) &= -{(c-X^L+X^U)^2 \over {_{CIR}\theta_1}^2} {1 \over \Bigg \MyLeftSquareBracket \frac{\partial \Phi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2
{_{CIR}\theta_1} X^L}{{_{CIR}\theta_3}}\Big)-} \cdots \notag \\
&\qquad {1 \over
\frac{\partial \Phi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1}
X^U}{{_{CIR}\theta_3}}\Big) -\frac{\partial \Psi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1} X^L}{{_{CIR}\theta_3}}\Big) + } \cdots \notag \\
& \qquad\qquad {1 \over \frac{\partial \Psi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1}
{_{CIR}\theta_2}}{{_{CIR}\theta_3}}, \frac{2 {_{CIR}\theta_1} X^U}{{_{CIR}\theta_3}}\Big) \Bigg \MyRightSquareBracket^3 }
\times \notag \\
&\qquad \Bigg [ \frac{\partial \Phi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1}
X^L}{{_{CIR}\theta_3}}\Big)^2-\frac{\partial \Phi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1}
X^U}{{_{CIR}\theta_3}}\Big)^2 + \notag \\
&\qquad \frac{\partial \Phi^2}{\partial a^2}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1}
X^U}{{_{CIR}\theta_3}}\Big)-\frac{\partial \Phi^2}{\partial a^2}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1} X^L}{{_{CIR}\theta_3}}\Big)+ \notag \\
&\qquad \frac{\partial \Psi}{\partial a}\Big(0,\frac{2
{_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1} X^L}{{_{CIR}\theta_3}}\Big)^2-\frac{\partial \Psi^2}{\partial a^2}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1}
X^L}{{_{CIR}\theta_3}}\Big)- \notag \\
&\qquad \frac{\partial \Psi}{\partial a}\Big(0,\frac{2 {_{CIR}\theta_1} {_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1} X^U}{{_{CIR}\theta_3}}\Big)^2+\frac{\partial \Psi^2}{\partial a^2}\Big(0,\frac{2 {_{CIR}\theta_1}
{_{CIR}\theta_2}}{{_{CIR}\theta_3}},\frac{2 {_{CIR}\theta_1} X^U}{{_{CIR}\theta_3}}\Big)\Bigg ]
\end{align} }
\end{document}
This is a variant, which works with math-environments which understand \tag. Together with the class-option leqno it doesn't work thou. I learned this approach from Philipp Stephani. It works the same way as amsmaths intertext, but puts the text on the same line as the equation.
\documentclass[letterpaper,11pt]{article}
\usepackage{amsmath}
\usepackage{etoolbox}
\makeatletter
\newif\if@gather@prefix
\preto\place@tag@gather{%
\if@gather@prefix\iftagsleft@
\kern-\gdisplaywidth@
\rlap{\gather@prefix}%
\kern\gdisplaywidth@
\fi\fi
}
\appto\place@tag@gather{%
\if@gather@prefix\iftagsleft@\else
\kern-\displaywidth
\rlap{\gather@prefix}%
\kern\displaywidth
\fi\fi
\global\@gather@prefixfalse
}
\preto\place@tag{%
\if@gather@prefix\iftagsleft@
\kern-\gdisplaywidth@
\rlap{\gather@prefix}%
\kern\displaywidth@
\fi\fi
}
\appto\place@tag{%
\if@gather@prefix\iftagsleft@\else
\kern-\displaywidth
\rlap{\gather@prefix}%
\kern\displaywidth
\fi\fi
\global\@gather@prefixfalse
}
\newcommand*{\beforetext}[1]{%
\ifmeasuring@\else
\gdef\gather@prefix{#1}%
\global\@gather@prefixtrue
\fi
}
\makeatother
\begin{document}
\begin{align}
\label{eq:1}
\beforetext{and similary} hwnn &= H+hw\\
\beforetext{Thus} nn-nn &=1.
\end{align}
\end{document}
Output: 
Best Answer
I used a
tabularenvironment to keep the text-alignment and then shifted it to the left inside aflushleftenviornment.