How to get nth roots?

**Timbuk2**

I am having trouble getting nth roots to work on boards.

As far as I know, to get nth roots one should type \sqrt[n]{argument} but typing [latex]\sqrt[3]{27x^3}[/latex] displays [latex]\sqrt[3]{27x^3}[/latex]

Does anybody know how to get this working? The best I can do is display this: [latex]^3\sqrt{27x^3}[/latex] by superscripting the 3 before the \sqrt.

leninbenjamin

**Timbuk2** wrote: »

I am having trouble getting nth roots to work on boards.

As far as I know, to get nth roots one should type \sqrt[n]{argument} but typing [latex]\sqrt[3]{27x^3}[/latex] displays [latex]\sqrt[3]{27x^3}[/latex]

Does anybody know how to get this working? The best I can do is display this: [latex]^3\sqrt{27x^3}[/latex] by superscripting the 3 before the \sqrt.

you could try using the amsmath package.

\usepackage{amsmath}

then you can position the root itself using left root and up root like so:

\sqrt[\leftroot{-2}\uproot{2}\beta]{k}

something to try perhaps... but I've no idea why the roots aren't working. That should work fine under the normal math environment...

Time Magazine

**Timbuk2** wrote: »

As far as I know, to get nth roots one should type \sqrt[n]{argument} but typing [latex]\sqrt[3]{27x^3}[/latex] displays [latex]\sqrt[3]{27x^3}[/latex]

Yeah Boards doesn't actually use a proper, full LaTeX environment to display the output. It leeches off some other server afaik. This other server obviously hasn't installed everything. But you're right about the square-bracket argument for nth roots.

Does anybody know how to get this working? The best I can do is display this: [latex]^3\sqrt{27x^3}[/latex] by superscripting the 3 before the \sqrt.

Yep, I think that's your best bet.

Also you may want to use [noparse][noparse][/noparse] tags instead of throwing [size] tags into your post. Something like:
[noparse][noparse][latex]x^2[/latex][/noparse][/noparse]
works just like the [nocensor] tags to not asterisk out swear words.

antiselfdual

Change notation?

[latex](27x^3)^{1/3}[/latex]