I wish to write X as product like $X_{n=1}^k$. How to write it? For example, we write $\sum \limits _{n=1}^k$

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    Welcome to TeX.SX! I am not sure if I get you right. Please explain a bit more, what you want to achieve here. If necessary draw a little picture and post it. Do you want to get a new symbol which is used like \prod \limits but looks like a big X? – LaRiFaRi Sep 22 '14 at 11:09
  • I wish to write \times but a bit larger with limits. – 6-0 Sep 22 '14 at 11:11
  • Welcome to TeX.SX! You can have a look at our starter guide to familiarize yourself further with our format. – Reinstate Monica - M. Schröder Sep 22 '14 at 11:19
  • There are several related posts: tex.stackexchange.com/search?q=bigtimes – egreg Sep 22 '14 at 12:37

Classical TeX

Both MnSymbol and mathabx provides the symbol \bigtimes. However both packages also change the math symbols, but it is also possible to only get \bigtimes.




Result MnSybmol

Version without package MnSymbol by using the relevant code from the package only:


% MnSymbol

\usepackage{amsmath}% provides \DOTSB and \slimits@
\DeclareFontFamily{U}  {MnSymbolF}{}
    <-6>  MnSymbolF5
   <6-7>  MnSymbolF6
   <7-8>  MnSymbolF7
   <8-9>  MnSymbolF8
   <9-10> MnSymbolF9
  <10-12> MnSymbolF10
  <12->   MnSymbolF12}{}
    <-6>  MnSymbolF-Bold5
   <6-7>  MnSymbolF-Bold6
   <7-8>  MnSymbolF-Bold7
   <8-9>  MnSymbolF-Bold8
   <9-10> MnSymbolF-Bold9
  <10-12> MnSymbolF-Bold10
  <12->   MnSymbolF-Bold12}{}





Result mathabx

Without package:


% mathabx

      <5> <6> <7> <8> <9> <10>
      <10.95> <12> <14.4> <17.28> <20.74> <24.88>


LuaTeX/XeTeX with unicode-math

As David Carlisle has written in his answer, the symbol is a Unicode symbol:

U+2A09 n-ary times operator

It can be used directly or via command \bigtimes with package unicode-math and TeX engines, which support OpenType fonts (LuaTeX, XeTeX).

Example with different fonts:



      \bigtimes_{n=1}^k\quad \mbox{\footnotesize(#1)}%

Result unicode-math

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  • aha, I've updated my answer to refer to yours for classic TeX:-) – David Carlisle Sep 22 '14 at 11:36
  • @DavidCarlisle I am referencing back and have added a full example with differernt fonts. – Heiko Oberdiek Sep 22 '14 at 12:14

Is this what you mean? Here are two variants, using answer from How are big operators defined?



This is inline: \(\foo_{i=3}^{6}(f^2(i)) \)


This is inline: \(\barr_{i=3}^{6}(f^2(i)) \)

enter image description here

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  • It,s not like "\times". It is like "X". I want to write like "\times" with limits. – 6-0 Sep 22 '14 at 11:13
  • @hamed Please see revision – Steven B. Segletes Sep 22 '14 at 11:14

Unicode has this symbol as U+2A09 (⨉) so if you are using a unicode engine (xetex or luatex) you can use that symbol directly or use \bigtimes with unicode-math package. See Heiko's answer to access fonts for classic TeX that have this symbol..

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