0

Here can you please share the code to write the equation in latex.

How to write the equation in latex mode described in the below image.

  • Welcome to TeX.StackExchange! It would be great if you could show us what you have tried. Posting a minimal working example makes it easier for people to help you, since they have some code to start from, and hence much more likely that some one will try to help you. If you need help starting search for the cases environment. –  Jul 26 '20 at 05:37
  • Does this help? – Davislor Jul 26 '20 at 05:49
  • You would want to use a \begin{cases} ... \end{cases} block, except that your example is typeset in \textstyle rather than \displaystyle. – Davislor Jul 26 '20 at 05:55
  • You’d wrap the text in the end within a \textnormal, probably align them, and have a \sum_{t=1}^{K-1} and a few \frac expressions. – Davislor Jul 26 '20 at 05:57

1 Answers1

5

As starting point:

\documentclass{article}
\usepackage{mathtools}

\begin{document}
[
I_{\mathrm{avg}} =
    \begin{dcases}
    1   & \text{ if } 0 < \delta < T_c, \text{ without ICI},    \
    \frac{2T_u+3T_c}{3(T_u+T_c)} + \sum_{l=1}^{K-1}\frac{T_u}{(\pi l)^2(T_u+T_c)}
        & condition
    \end{dcases}
]
\end{document}

enter image description here

  • the writing of the second condition I left to you
  • solution consider how such math structures are usually written
  • math environment dcases is defined in the mathtools package, which is enhanced of the amsmath package defined by American Mathematics Association, so it is considered as standard way of writing advanced mathematics
  • amsmath define cases, which in comparison to dcases left math inside cases structure in inline mode (as is written in the text)
  • for basic how to write math in LaTeX you can learn from some introductory text about LaTeX and writing mathematics, for example in the The Not So Short Introduction to LaTeX and in the wiki Mathematics.
Zarko
  • 296,517
  • I will write "condition" in text mode. :-) – Sebastiano Jul 26 '20 at 12:16
  • 1
    @Sebastiano, I left this to OP (fro practice that he write the second condition himself on the way as is written first condition) ... but so far no response from him :-(. Well, today is Sunday :-) – Zarko Jul 26 '20 at 15:03
  • 1
    Naturally....I'm agree with you....good Sunday from the hot Sicily. – Sebastiano Jul 26 '20 at 15:08
  • @Sebastiano, we have mix of high humidity, very short showers and moderate hot day :-). I'm a bit jealous on your weather ... – Zarko Jul 26 '20 at 18:42
  • We reached 38 degrees this afternoon and now there is a scirocco wind that is certainly good for my cervical :-( – Sebastiano Jul 26 '20 at 19:31