Cfrgtkky

In my thesis, I have a problem when I want to refer to equations. Reference is basically happening based on section or subsections numbering in three digits (e.g. 1-1-1). Also, if I have more than one equation in the same subsection, all are shown by the same number! (1.1.2 in the following example!)! The number beside each equation is correctly shown, however, as (1-1) or (1-2) or ... . I want the equation number in the text be shown sequentially as 1-1, 1-2, 1-3, 1-4,
... .

Please help me solve this problem. Thanks

Here is my minimal working example:

documentclass[11pt,oneside,english,singlespacing,parskip,headsepline]{MastersDoctoralThesis}



usepackage{mathtools}



makeatletter

newcommand{mathleft}{@fleqntrue@mathmargin0pt}

newcommand{mathcenter}{@fleqnfalse}

makeatother



begin{document}

chapter{Chapter 1}

section{Section1}

subsection{Subsection 1-1}



mathleft

begin{equation}

label{eq:KE_Energy}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy} is kinetic energy.



subsection{Subsection 1-2}



mathleft

begin{equation}

label{eq:KE_Energy2}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy2} is kinetic energy.



mathleft

begin{equation}

label{eq:KE_Energy3}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy3} is kinetic energy.



section{Section2}

subsection{Subsection 2-1}



mathleft

begin{equation}

label{eq:KE_Energy4}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy4} is kinetic energy.



end{document}  

An here is the output:

The mathleft and mathcenter commands defined in the preamble break amsmath removing all use of them restores the correct numbering.

documentclass[11pt,oneside,english,singlespacing,parskip,headsepline]{MastersDoctoralThesis}



usepackage{mathtools}



makeatletter

%newcommand{mathleft}{@fleqntrue@mathmargin0pt}

%newcommand{mathcenter}{@fleqnfalse}

makeatother



begin{document}

chapter{Chapter 1}

section{Section1}

subsection{Subsection 1-1}



%mathleft

begin{equation}

label{eq:KE_Energy}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy} is kinetic energy.



subsection{Subsection 1-2}



%mathleft

begin{equation}

label{eq:KE_Energy2}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy2} is kinetic energy.



%mathleft

begin{equation}

label{eq:KE_Energy3}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy3} is kinetic energy.



section{Section2}

subsection{Subsection 2-1}



%mathleft

begin{equation}

label{eq:KE_Energy4}

begin{aligned}

& langle KE rangle = frac{1}{2} langle mv^{2} rangle \

end{aligned}

end{equation}



Equation ref{eq:KE_Energy4} is kinetic energy.



end{document}  

Following the previous answer, I modified the packages as following:

usepackage[fleqn]{mathtools}

makeatletter

newcommand{mathleft}{@fleqntrue@mathmargin0pt}

newcommand{mathcenter}{@fleqnfalse}

makeatother

setlength{mathindent}{0cm}

(Changes are the first and last lines).
This solved the problem, and no other modification is necessary.