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A fractional latex code

  1. Apr 26, 2017 #1
    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. jcsd
  3. Apr 26, 2017 #2

    jedishrfu

    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.
     
  4. Apr 29, 2017 #3
    But even though code is written with ## it doesn't seem to be in bold type. What is the problem, it shoud have been in bold type.

    Thank you.
     
  5. May 8, 2017 #4
    I would like to ask about this code:

    latex frac.png

    Above code is from here: https://www.physicsforums.com/help/latexhelp/

    I am confused because \frac 1 2 should be seem as ## \frac 1 2##. Why it does not work in the rendered code?

    Thank you.
     

    Attached Files:

  6. May 8, 2017 #5

    fresh_42

    Staff: Mentor

    Not quite sure what you mean. If you write \text{ then anything in those brackets is plain text, whether it is a formula \frac{1}{2} or not }.
    Outside this \text{ } command, you get ##\frac 1 2 = \frac{1}{2}## if in formula mode. You even get it inside, as # # ... # # interrupts the \text{ } environment.
     
  7. May 8, 2017 #6
    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
  8. May 8, 2017 #7

    fresh_42

    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
    $ $
     
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