Image attached: I recently tried using the newcommand but like always it often doesn't render the \int or the integration sign, I know this becuase if I remove it from the body, everything seems fine. enter image description here

  • 3
    $\begingroup$ Be careful with these. As a sort of fluke, new commands defined in higher answers affect the TeX on lower answers too. Although rare, this causes problems if multiple users create new commands for the same things. $\endgroup$
    – davidlowryduda Mod
    Dec 31, 2014 at 16:05
  • $\begingroup$ @mixedmath to be exact about the situation:there was no answers above me, OP didn't added any newcommands; maybe when you see the situation remains same here:link $\endgroup$
    – RE60K
    Dec 31, 2014 at 17:26
  • $\begingroup$ Since it seems to be reproducing inconsistently, do you know which browser (and what version) you were using when it occurred? $\endgroup$
    – alexwlchan
    Dec 31, 2014 at 23:37
  • $\begingroup$ @alexwlchan i always use chrome(maybe latest) $\endgroup$
    – RE60K
    Jan 1, 2015 at 9:21

1 Answer 1


It seems to be working on my end...

\newcommand{\irf}[4]{\int_{#1}^{#2} \frac{#3}{#4} {\rm d} x}
\irf{-\I}{+\I}{x+\sin x}{x(x^2+4i-4)^2}$$

$$\newcommand{\I}[0]{\infty} \newcommand{\irf}[4]{\int_{#1}^{#2} \frac{#3}{#4} {\rm d} x} \irf{-\I}{+\I}{x+\sin x}{x(x^2+4i-4)^2}$$

  • $\begingroup$ but why doesn't mine $\endgroup$
    – RE60K
    Dec 31, 2014 at 17:26
  • $\begingroup$ I have no idea. I even tried putting this code into your answer and it rendered correctly. $\endgroup$ Dec 31, 2014 at 18:29
  • $\begingroup$ seems like the problem is specific to me only happened to me a few weeks ago too $\endgroup$
    – RE60K
    Dec 31, 2014 at 18:30
  • $\begingroup$ I you put this code into your answer yourself, does the preview render correctly? $\endgroup$ Dec 31, 2014 at 18:32
  • $\begingroup$ currently it seems working, but as I have attached the image, sometimes it does frustate me $\endgroup$
    – RE60K
    Dec 31, 2014 at 18:34
  • $\begingroup$ Happy New Year btw $\endgroup$
    – RE60K
    Dec 31, 2014 at 18:35

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .