# How to set maintitle and subtitle? [duplicate]

Recently, I have been translating a foreign paper that has main title and subtitle.

My trial:

\documentclass[UTF8]{ctexart}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{epstopdf}
\usepackage{inputenc}
\usepackage{geometry}
\geometry{left=2.5cm,right=2.5cm,top=2.5cm,bottom=2.5cm}
\begin{document}
\title{
Simulatin Modelling Practice and Theoty \\
\begin{large}
Common Simulation of a SCARA robot with PD and learning controller
\end{large} }

\end{document}


However, it failed to achieve that effect. The main title is Simulatin Modelling Practice and Theory, subtitle is »Simulation of a SCARA robot with PD and learning controller«. So my question is how to alter it?

• What's the real problem? With \title{First line\\\large Second line} I get what seems a good result. – egreg Jan 9 '14 at 14:40
• @egreg,I think the OP wonder wethear use the latex command like \subtitle ,however,the latex doesn't own that command. – abc Jan 9 '14 at 14:50
• @tangshutao There is no such command in the ctexart class. – egreg Jan 9 '14 at 14:54
• You don’t say whether you have to keep using ctex for the translated article. In a similar, previous answer KOMA Script classes are recommended, which I second. – Crissov Jan 9 '14 at 15:16
• Also paper document class have a \subtitle{} command. – Fran Jan 12 '14 at 0:04

I have no problem if I use \large instead of the non existent large environment.

\documentclass[UTF8]{ctexart}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{epstopdf}
\usepackage{inputenc}
\usepackage{geometry}
\geometry{left=2.5cm,right=2.5cm,top=2.5cm,bottom=2.5cm}
\begin{document}

\title{%
Simulating Modelling Practice and Theory \\
\large Common Simulation of a SCARA robot \\
with PD and learning controller}

\author{Shutao Tang}

\maketitle

\end{document}


• This usage of 'inexistent' is possibly deprecated (OED), and the word is now used with another meaning. I think you want 'non-existent'? ['Inexistent' apparently means 'Existing or having its being in something else; inherent.' 'Inexistent' was, it seems, used to mean 'non-existent' in the seventeenth and eighteenth centuries. OED have '? Obs' which I assume means that they aren't certain this usage is deprecated, but they think it probably is.] – cfr Dec 25 '14 at 2:12
• @cfr False friends! – egreg Dec 25 '14 at 9:54
• Nadolig llawen! – cfr Dec 25 '14 at 15:38
• For me it is giving error like, File ctexart.cls' not found. \usepackage – David Nov 20 '15 at 10:53
• @David You have an incomplete TeX installation. Note that the answer is not specific for the ctexart class. – egreg Nov 20 '15 at 11:23

I tried with the class article..it is giving nicely..

The codes are here..

\documentclass[UTF8]{article}
\begin{document}

\title{%
Simulating Modelling Practice and Theory \\
\large Common Simulation of a SCARA robot \\
with PD and learning controller}

\author{Shutao Tang}

\maketitle

\end{document}
`