I am writing a Persian article using Xelatex typesetting and the xepersian package. My problem is that I cannot see characters get bold or italic using textbf and textit respectively. This is my sample document:

\subsection{فرمول بندی مساله}
در این بخش به فرمول بندی مدل زمان -‍ پیوسته ی انتشار برای داده ی مشخص و سپس‌،  راست نمایی آن پرداخته می شود.
\subsubsection{داده ی مساله }
در این پایان نامه، چندین موج انتشار برروی تعداد ثابتی از

 گره در نظر گرفته شده است.


what shall I do?

closed as off-topic by user36296, Bobyandbob, Mensch, Stefan Pinnow, Phelype Oleinik Apr 14 '18 at 17:45

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  • Welcome to TeX.SE. Which font do you use? (If I try to run your code, I get an error message, "You have not specified any font for the main Persian text".) – Mico Apr 8 '16 at 14:56
  • @Mico thanks. I did not mention any font in my script. By the way, I did not use fontspec applications in my code, thus u can omit it. – anahita Apr 8 '16 at 15:05
  • @Mico I am compiling it with Texworks. – anahita Apr 8 '16 at 15:06
  • the defult font in Texworks is MS Shell Dlg 2 – anahita Apr 8 '16 at 15:09
  • 4
    I'm voting to close this question as solved in comments – user36296 Apr 14 '18 at 16:47