# A fractional latex code

1. Apr 26, 2017

### mech-eng

How can this code be coded by another way?

$\frac {300-270.1}{T-130}$ = $\frac {313.-270.1}{135-130}$

And it is also very strange that the right side O.K but left side is not but everything is the same for left and right.

#,# \frac {300-270.1}{T-130}$=$ \frac {313.-270.1}[135-130}#,#

Thank you.

2. Apr 26, 2017

### Staff: Mentor

I don't see a problem. On the right, you have 313. and on the left you have 300 no dot.

The denominator is centered under the numerator too. It looks pretty good.

3. Apr 29, 2017

6. May 8, 2017

### mech-eng

This was what exactly I ask. But what does "plain roman text" mean? Would you explain this concept in a most simple way?

Thank you.

Last edited: May 8, 2017
7. May 8, 2017

### Staff: Mentor

It just means text. You can have a # # ... # # environment with a \text{} or \textrm{} command in between. E.g. if one writes a long formula, or a formula embedded in  ... , then it is often convenient to insert short text entries like "and" or "such that" without having to leave the math mode, e.g.
$$\forall x \in X \text{ and } \forall y \in X \; \exists z \in X \textrm{ such that } x + y = z$$
which is written as

\forall x \in X \text{ and } \forall y \in X \; \exists z \in X \textrm{ such that } x + y = z