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I want to replicate this:

enter image description here

However I got this:

enter image description here

Can anyone help me please?

My MWE is this:

\immediate\write18{makeindex \jobname.nlo -s nomencl.ist -o \jobname.nls}
\documentclass[a4paper,11pt,oneside]{book}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{mathpazo}
\usepackage{geometry}
\usepackage[colorinlistoftodos]{todonotes}
\usepackage{tablefootnote}
\usepackage{graphicx}
\usepackage{adjustbox}
\usepackage{array}
\usepackage{mathtools}
\usepackage{float}
\usepackage{subfig}
%, nccmath}
\usepackage{siunitx} 
\usepackage{mhchem}
\usepackage{chemfig}    
\usepackage[colorinlistoftodos]{todonotes}
\usepackage[autostyle]{csquotes}
\usepackage{multirow}
\usepackage{xcolor}
\usepackage{booktabs}
\usepackage{soul}
\usepackage{acro}
\usepackage{pgfplots}
\usepackage{enumitem}
\usepackage{lscape}
\usepackage{tabularx}
\usepackage{nomencl}
\makenomenclature
\usepackage{amsmath}
\usepackage{lipsum}
%\usepackage[toc,page]{appendix}
%\usepackage{tikz}
\usetikzlibrary{intersections, calc}
\pgfplotsset{compat=1.14}
\usepackage{filecontents}
\acsetup{first-style=short}

\usepackage[backend=bibtex,style=authoryear,natbib=true]{biblatex} 

\addbibresource{example.bib}

\begin{document}

\begin{equation}
\begin{split}
\mathbold{min}~ \nabla f(x)^{T} d  + \frac{1}{2} d^{T} Hd \\
\mathbold{s.t.}~ g_{j}(x) + \nabla g_{j}(x)^{T} d \leq 0 , \quad j  = 1, ..., m, \\
g_{j}(x) + \nabla g_{j}(x)^{T} d = 0 \quad j = m +1, ..., m+l,
\end{split}
\end{equation}

\end{document}
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  • For your code there is an error (using Papeeria): /main.tex :37 Package pgfkeys Error: Choice '1.14' unknown in choice key '/pgfplots/compat/anchors'. I am going to ignore this key. [\pgfplotsset{compat=1.14}].
    – Sebastiano
    Commented Dec 3, 2018 at 19:59

1 Answer 1

2

A solution with two (nested) alignedat environments. I removed all unrelated packages. Note you don't have to load amsmath if you load mathtools – the latter does it for you:

\documentclass[a4paper, 11pt, oneside]{book}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{mathpazo}
\usepackage{geometry}
\usepackage{mathtools}

\begin{document}

\begin{equation}
\begin{alignedat}{2}
 & \mathbold{min} & \enspace & \nabla f(x)^{T} d + \frac{1}{2} d^{T} Hd \\
 & \mathbold{s.t.} & & \begin{alignedat}[t]{2}
g_{j}(x) + \nabla g_{j}(x)^{T} d & \leq 0 , & \quad j & = 1, ..., m, \\
g_{j}(x) + \nabla g_{j}(x)^{T} d & = 0 & j & = m +1, ..., m+l,
\end{alignedat}
\end{alignedat}
\end{equation}

\end{document} 

enter image description here

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