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Homework Help: How do you write Powers

  1. Feb 15, 2010 #1
    I have a few questions that I would like to post on this site involving powers. First of all, can someone please tell me how to write the small figures that represent powers? I can do it on Microsofy packages, but not on this site.
  2. jcsd
  3. Feb 15, 2010 #2


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    Homework Helper

    2x = 2[*SUP]x[*/SUP] without the * (the X2 button)

    or [*tex)2^x[*/tex] without the * (check the Σ button)
  4. Feb 18, 2010 #3
    When in advanced options for a reply or when starting a thread if you want 'to the power of' where it has the X^2 where the 2 is above the x click that and insert your value which is being put to the power of in the middle of the code i.e. x2 is just x[.SUP]2[/SUP] just for example i put a fullstop in the first SUP.
  5. Feb 18, 2010 #4

    Char. Limit

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    Gold Member

    I prefer the tex option, myself. Makes it easier to write other complicated math stuff.

    [tex](\frac{x}{2})^2 = \frac{x^2}{4}[/tex]
  6. Feb 18, 2010 #5
    Tex is very flexible and powerful. For example parenthesis, brackets and curly braces can be scaled with

    \bigr \bigl \Bigr \Bigl \biggr \biggl \Biggr and \Biggl

    [tex]\bigl({{x}\over{2}}\bigr)^2 = \frac{x^2}{4}[/tex]

    [tex]\biggl({{x}\over{2}}\biggr)^2 = \frac{x^2}{4}[/tex]

    [tex]\Bigl({{x}\over{2}}\Bigr)^2 = \frac{x^2}{4}[/tex]

    [tex]\Biggl({{x}\over{2}}\Biggr)^2 = \frac{x^2}{4}[/tex]
    Last edited: Feb 18, 2010
  7. Feb 19, 2010 #6
  8. Feb 19, 2010 #7


    Staff: Mentor

    If you see what looks like some fancy LaTeX work, such as the things in elect_eng's post, if you double-click the expression, you can see the script that he used that renders that way.
  9. Feb 25, 2010 #8
    [tex]x^2 should give me x to the power of 2. here goes!
  10. Feb 25, 2010 #9
    and x^2
  11. Feb 25, 2010 #10


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    You're missing the tex tags! [t ex] x^2 [/t ex] (remove the spaces between the t and e)
  12. Feb 25, 2010 #11


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    Staff: Mentor

    You need both opening and closing tag:

    [tеx]x^2[/tеx] -> [tex]x^2[/tex]
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