Eq(1)=> Daily average load =No. of units (kWh) generated in a day/24 hours

Eq(2)=> E=mC^2

where E=Energy

m=mass

C= velocity of light

How can I write this above two equations in this template and if length of a sentence is long then what to do?

## LaTeX forum ⇒ Math & Science ⇒ Sentence in Equation

### Sentence in Equation

Last edited by hafizur on Mon Feb 08, 2016 11:23 am, edited 1 time in total.

- Johannes_B
- Site Moderator
**Posts:**4165**Joined:**Thu Nov 01, 2012 4:08 pm

One proposal since i don't understand the question:

\documentclass{article} \usepackage{mathtools} \usepackage{array} \begin{document} \begin{align} \mathrm{Daily~average~load~}&=\mathrm{No.~of~units~(kWh)~ generated~in~a~day/24~hours}\\ E&=mC^2 \end{align} where \begin{tabular}[t]{>{$}l<{$}@{~=~}l} E&Energy\\ m&mass\\ C& velocity of light \end{tabular} \end{document}

The smart way: Calm down and take a deep breath, read posts and provided links attentively, try to understand and ask if necessary.

- Stefan Kottwitz
- Site Admin
**Posts:**9573**Joined:**Mon Mar 10, 2008 9:44 pm

Here is another example showing the use of siunitx. It may look strange here, but in bigger documents it's very useful for consistent scientific units and constants.

For the rest, see Johannes' post.

Stefan

\documentclass{article} \usepackage{mathtools} \usepackage{siunitx} \DeclareSIUnit\E{E} \DeclareSIUnit\c{c} \begin{document} \begin{equation} \text{Daily average load} = \text{No. of units (\si{\kWh}) generated in a day / 24 hours} \end{equation} \begin{equation} \si{\E} = \si{\m\c\squared} \end{equation} \end{document}

For the rest, see Johannes' post.

Stefan

LaTeX.org admin

Thank you very much...

- Johannes_B
- Site Moderator
**Posts:**4165**Joined:**Thu Nov 01, 2012 4:08 pm

Stefan,

i would argue that Energy, mass and speed of light have units to measure them, but are not units themselve. Einsteins formula looks really queer written as SI units.

Another thing i came around a while ago was that using

i would argue that Energy, mass and speed of light have units to measure them, but are not units themselve. Einsteins formula looks really queer written as SI units.

Another thing i came around a while ago was that using

`\text`

isn't always a good idea. If that equation is used in a theorem with italic text, the text in the formula will also be written in italics, which would be inconsistent.The smart way: Calm down and take a deep breath, read posts and provided links attentively, try to understand and ask if necessary.

- Stefan Kottwitz
- Site Admin
**Posts:**9573**Joined:**Mon Mar 10, 2008 9:44 pm

By the way, you may notice that I wrote constants and units upright. That's what

Johannes is right, that E and m are variables, but c is a constant, to be written upright, and a mix would look even more strange... so I took the freedom to define them kind of symbolic upshape because we don't really calculate with those variables, or do we ...

The photo is by Lienhard Schulz - Own work, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=795152.

Stefan

`siunitx`

does, furthermore it takes care of spacing between numbers and units, and more.Johannes is right, that E and m are variables, but c is a constant, to be written upright, and a mix would look even more strange... so I took the freedom to define them kind of symbolic upshape because we don't really calculate with those variables, or do we ...

The photo is by Lienhard Schulz - Own work, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=795152.

Stefan

LaTeX.org admin

where \begin{tabular}[t]{>{$}l<{$}@{~=~}l} x&Measurement interval (1 hour). The value of x can be up to 8760 in a year, if the plant operates throughout. In case the plant has been shut down for some period in year y, in that year, use the number of measurement for x for the operational hour only\\ \end{tabular}

Here the description length of x is very long, this text cross the right side border in pdf and no starting in new line after first line. This sentence always in one line. How can I solve this?

Last edited by hafizur on Mon Feb 08, 2016 4:11 pm, edited 1 time in total.

- Johannes_B
- Site Moderator
**Posts:**4165**Joined:**Thu Nov 01, 2012 4:08 pm

Substitute the final

I recommend to read LaTeX for complete novices.

On the other hand, i think that in a sserious paper, the description of what a variable or constant is, belongs into the text. In text, the meaning can be written in clear sentences. A proper list of symbols at the begin or end of a paper with a short description for a quick look-up is the usal way to go.

Having the description glued to the equation is one of the most hideous things i see in academic papers and technical reports.

`l`

(ell) when defining the columns with `p{.8\linewidth}`

.I recommend to read LaTeX for complete novices.

On the other hand, i think that in a sserious paper, the description of what a variable or constant is, belongs into the text. In text, the meaning can be written in clear sentences. A proper list of symbols at the begin or end of a paper with a short description for a quick look-up is the usal way to go.

Having the description glued to the equation is one of the most hideous things i see in academic papers and technical reports.

The smart way: Calm down and take a deep breath, read posts and provided links attentively, try to understand and ask if necessary.

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