Dave 246 Posted March 14, 2006 Can you give me an example? 0 Share this post Link to post Share on other sites

RyanJ 34 Posted March 14, 2006 Can you give me an example? Yea shure [math] \begin{array}{c|c} Name & Age\\ Row & 2 \end{array} [/math] Cheers, Ryan Jones 0 Share this post Link to post Share on other sites

Dave 246 Posted March 14, 2006 I'll sort that out; I think I probably know what the problem is. 0 Share this post Link to post Share on other sites

RyanJ 34 Posted March 14, 2006 I'll sort that out; I think I probably know what the problem is. OK, thanks Dave Cheers, Ryan Jones 0 Share this post Link to post Share on other sites

RyanJ 34 Posted April 1, 2006 [math] \setlength{\unitlength}{1cm} \begin{picture}(6,5) \thicklines \put(1,0.5){\line(2,1){3}} \put(4,2){\line(-2,1){2}} \put(2,3){\line(-2,-5){1}} \put(0.7,0.3){$A$} \put(4.05,1.9){$B$} \put(1.7,2.95){$C$} \put(3,2.8){$AB^2 = AC^2 + BC^2$} \end{picture} [/math] Very interesting 0 Share this post Link to post Share on other sites

Norman Albers 27 Posted April 2, 2006 [math]A_\phi=\tfrac{2}{3}r^{-2} - \tfrac{1}{3}(2r^{-2}+2r^{-1}+1)e^{-r} - \tfrac{r}{3}(\int{r^{-1}e^{-r}}-\gamma)[/math] BABE, THANKS, NOW I'M COOOOOL WITH MY ROCK'N'ROLL ELECTRONS. 0 Share this post Link to post Share on other sites

Cap'n Refsmmat 1351 Posted April 2, 2006 That's [math]A_\phi= \tfrac{2}{3}[/math] And you can hit Preview Post to see how it will turn out. 0 Share this post Link to post Share on other sites

nicobudini 10 Posted April 24, 2006 [math]x^2_1[/math] 0 Share this post Link to post Share on other sites

hotcommodity 18 Posted October 16, 2006 [math]\sum_{n=1}^{\infty}\frac{(-1)^nn^3}{3^n}[/math] [math]\left|\frac{a_{n+1}}{a_n}\right|=\frac{(n+1)^3}{3^{n+1}}\frac{3^n}{n^3}=\frac{1}{3}{\frac{{n+1}^3}{{n}^3}}=\frac{1}{3}(1+\frac{n}n\right)^3[/math] How do I fix the abs. value and get ((n+1)/n)^3 instead of (n+1^3)/n?` 0 Share this post Link to post Share on other sites

D H 1371 Posted October 16, 2006 How do I fix the abs. value? Use \left and \right: [math]\left|\frac{a_{n+1}}{a_n}\right|[/math] How do I get ((n+1)/n)^3 instead of (n+1^3)/n? Same thing again, only use parens instead of the vertical bar as arguments of left and right: [math]\left(\frac{n+1}n\right)^3[/math] 0 Share this post Link to post Share on other sites

hotcommodity 18 Posted October 16, 2006 Thanks D H 0 Share this post Link to post Share on other sites

Royston 273 Posted November 26, 2006 [math]y = x^2 - 4x + 3[/math] [math](y + \Delta y) = (x + \Delta x)^2 - 4(x + \Delta x) + 3[/math] [math]y + \Delta y = x^2 + 2x \Delta x + (\Delta x)^2 - 4x - 4\Delta x + 3[/math] [math]y + \Delta y = (x^2 - 4x + 3) + 2x\Delta x - 4\Delta x + (\Delta x)^2[/math] [math]\Delta y = 2x \Delta x - 4\Delta x + (\Delta x)^2[/math] [math]\frac {\Delta y}{\Delta x} = 2x - 4 + \Delta x[/math] [math]\frac {dy}{dx} = 2x - 4[/math] Just practicing differentiation... [math]X^2 = \sum_{i=1}^{n}\frac {(O_i - E_i)^2}{E_i}[/math] a simple [math]X^2[/math] test equation. Just some of my current course content, need to get to grips with Latex, before I start asking any math related questions. 0 Share this post Link to post Share on other sites

solo 10 Posted December 8, 2006 [math]\left[\left(\frac{\hbar c}{e^2}\right)^3 \left(\frac{\hbar c}{G^3}\right)^3 \left(\frac{\hbar re}{G^3}\right)^{1.111111....}\right] = \left(\pi\right)^3[/math] 0 Share this post Link to post Share on other sites

no genius 10 Posted May 10, 2007 [math]\sum _{i=1}^{\infty }A_{{i}}=5[/math] nice. i <3 maple's latex converter. 0 Share this post Link to post Share on other sites

w=f[z] 17 Posted June 22, 2007 [math]A^\mu _{\ ; \nu}=\frac{\partial A^\mu}{\partial x^\nu}+\Gamma^\mu_{\nu \lambda}A^\lambda \ \ \ A _{\mu ; \nu}=\frac{\partial A_\mu}{\partial x^\nu}-\Gamma^\lambda_{\mu \nu}A_\lambda[/math] Just goofin' around.... Very glad this forum has LaTeX. 0 Share this post Link to post Share on other sites

Tartaglia 61 Posted July 1, 2007 Just testing [math] \frac{\partial F}{\partial X} [/math] 0 Share this post Link to post Share on other sites

Norman Albers 27 Posted August 23, 2007 I'd like to know how to lay out matrices (4x4). . . . .OK I see how to get started on p. 2; sorry. 0 Share this post Link to post Share on other sites

Norman Albers 27 Posted September 9, 2007 Vector cross-product? 0 Share this post Link to post Share on other sites

timo 554 Posted September 9, 2007 Vector cross-product? What are you asking? For a symbol that can be used for the cross-product? Try "\times". 0 Share this post Link to post Share on other sites

Norman Albers 27 Posted September 9, 2007 [math]r\times A [/math]. Thanks, mate! Here is a compatible reference I have downloaded: http://amath.colorado.edu/documentation/LaTeX/Symbols.pdf 0 Share this post Link to post Share on other sites

no genius 10 Posted September 24, 2007 [math] \left( \Psi \left( x+1 \right) -\Psi \left( x-1 \right) \right) {x \choose 2}[/math] 0 Share this post Link to post Share on other sites

Norman Albers 27 Posted September 30, 2007 Limits of evaluation: [math] I®\vline _1^R [/math]. Larger, [math] \frac{F}{G}|_1^R[/math]. Nope, how do we do "evaluated at"? 0 Share this post Link to post Share on other sites

the tree 222 Posted September 30, 2007 [math]\forall n \in \mathbb{N} \backslash \left \{ 1 \right \} \exists p,q \in \mathbb{P} : 2n=p+q[/math] A random question, my course teaches use of LaTeX, how common is that? Have other people mostly had to teach themselves? 0 Share this post Link to post Share on other sites

ydoaPs 1600 Posted September 30, 2007 [math]\forall n \in \mathbb{N} \backslash \left \{ 1 \right \} \exists p,q \in \mathbb{P} : 2n=p+q[/math] A random question, my course teaches use of LaTeX, how common is that? Have other people mostly had to teach themselves? I learned it here. 0 Share this post Link to post Share on other sites

PhDP 76 Posted September 30, 2007 I learned it here. You mean, writing equations with LaTeX ? Or writing documents with LaTeX ? I learned to write documents with LaTeX by myself, I'm not an expert but I'm good enough to write articles with it, it's really much better than Microsoft Word. I use MiKTeX + TeXnicCenter. 0 Share this post Link to post Share on other sites