Introducing LaTeX Math Typesetting

[Davorak]

bored and late

FBox[x_List] := StringJoin@ToString @@@ Flatten[
{
"\begin{array}\n",
"{", "|", Table["
c|", {n, 1, Length[x]}], "}", "\hline", Table[{Table[{ToString[x[[n1,
n2]]], If[n2 ≠ Dimensions[
x][[2]], "&", ""]}, {n2, 1, Dimensions[x][[2]]}], "\\\\", "\hline
"}, {n1, 1, Dimensions[x][[1]]}], "\n \end{array}"
}
]

FBox[{{1, 2}, {1, 2}, {3, 2}, {2, 4}, {2, 5}}]:
$$\begin{array} {|c|c|c|c|c|}\hline1&2\\\hline1&2\\\hline3&2\\\hline2&4\\\hline2&5\\\hline \end{array}$$

 

[Davorak]

F2[x_List] := StringJoin @@ ToString @@@ Flatten[
{
"\begin{array}",
"{", Table["c", {n, 1, Length[x]}], "}",
Table[
{Table[{ToString[x[[n1, n2]]], If[n2
≠ Dimensions[x][[2]], "&", ""]}, {n2, 1, Dimensions[x][[2]]}],
"\\\\"},
{n1, 1, Dimensions[x][[1]]}
],
"\end{array}"
}
]
F2[{{1, 2}, {1, 2}, {3, 2}, {2, 4}, {2, 5}}]:
$$\begin{array}{ccccc}1&2\\1&2\\3&2\\2&4\\2&5\\\end{array}$$

 

[Davorak]

The above code is for mathematica

 

[gnome]

Why doesn't this work? All I'm trying to do is get 2 left-aligned columns. First I was trying to do it using {array}{cc} formatting similar to the conditional equations up above. That didn't work so I tried this {equation*} layout which is also going haywire. When I was testing a little while ago, I'm pretty sure the same code (but with a smaller amount of content) worked almost correctly; only the first column was right- instead of left-aligned. Now it doesn't work at all.

To accomplish this, the formula will be built up from 3 types of variables, specifically:
$$\begin{equation*}\begin{split}\mbox{Variable} \quad &\mbox{Meaning}\\ Q[i,k] \quad &\mbox{At time i, M is in state q_k}\\ H[i,j] \quad &\mbox{At time i, the read-write head}\\ &\mbox{ is scanning tape square j}\\ S[i,j,k] \quad &\mbox{At time i, the contents of}\\ &\mbox{tape square j is symbol s_k}\end{split}\end{equation*}$$

OK this is really crazy; sometimes this works, and sometimes it doesn't, yet it's the same code structure as above:
$$\begin{equation*}\begin{split}\mbox{Variable} \quad &\mbox{Meaning}\\ Q[i,k] \quad &\mbox{At time i the read-write head blah blah blah}\\ &\mbox{blah blah blah}\\ H[i,j] \quad &\mbox{At time i}\end{split}\end{equation*}$$

 

[jcsd]

try {ll} instead {cc}, (that's how I managed to get the conditonal equation aligned).

 

[gnome]

Nope. It seems to make no difference whether I format it using {array}{cc} or {array}{11} or {equation*}{split}, \mbox{...} or \text{...]. For example:

To accomplish this, the formula will be built up from 3 types of variables, specifically:
$$\begin{array}{11}\mbox{Variable} & \mbox{Meaning}\\ Q[i,k] &\mbox{At time i, M is in state q_k}\\ H[i,j] &\mbox{At time i, the read-write head}\\ &\mbox{ is scanning tape square j}\\ S[i,j,k] &\mbox{At time i, the contents of}\\ &\mbox{tape square j is symbol s_k}\end{array}$$

 

[jcsd]

It's not a 1 it's an 'l' and you need one for each row:

edited to add: hmm I can't see anything wrong with this perhaps it's just too big.

 

[gnome]

(I think it's just any series of characters {xxx}, {111}, {iii}, whatever, not some particular one; and isn't it one for each COLUMN, not row?)


Edited to remove my witty(?) remark about the part of your post that you deleted.

 

[jcsd]

No, it's one for each row and 'c' is for centre 'l' is for left I guess.

edited to add: actually you're right but {ll}, {cc} or {rr} is the justifcation.

 

[jcsd]

This one works and it's simlair:

$$\begin{array}{lr}\mbox{yoink}&\mbox{double-yoink}\\G[i,j]&\mbox{yes}\\H[k,l] &\mbox{no}\\&\mbox{what?}\end{array}$$

I reckon then it must be thta it's just too big as there's a limit to the size of the code.

 

[gnome]

Good find!

That should be helpful.

 

[gnome]

That's it!

$$\begin{array}{ll}\mbox{Variable} & \mbox{Meaning}\\ Q[i,k] &\mbox{At time i, M is in state}\, q_k\\ H[i,j] &\mbox{At time i, the read-write head}\\ &\mbox{is scanning tape square j}\\ S[i,j,k] &\mbox{At time i, the contents of}\\ &\mbox{tape square j is symbol}\, s_k\end{array}$$


$$\mbox{testing another sub_sc_rip_t}$$

Building on jcsd's find:
the charaters in the brackets after {array} must be
{lll} (that lower-case L's) to left-align
{rrr} to right-align
{"any characters"} to center the text in each column (one char for each column)

Also: apparently subscript like q_k can't be used in \mbox in an array, although it can be used in \mbox when it's not part of an array.

Now I can get back to my "real" post.

Thanks.

 

[Norman]

Wick Contraction in LaTeX

Wick Contraction-

http://www.fzu.cz/~kolorenc/tex.php

This website has 2 or 3 possible implementations for Wick Contractions in QFT. I have not tried any, but will let you know how they work!

 

[ramollari]

Simple question.

Hi everybody,
Does anyone know how do I write a vector quantity, such as an F with an arrow up? I'm not so skilled in Latex.
Thanks

 

[jcsd]

\vec{F}

$$\vec{F}$$

 

[ramollari]

OK, let me try once.

$$\sum\vec{F}_e_x_t = M\vec{a}_c_m$$

 

[ramollari]

Thanks jcsd!

 

[Gary King]

How do I create the 'inverse' symbol?

 

[z-component]

Like $$cos\theta^{-1}$$?

 

[jcsd]

inverse is just ^{-1}, so the (muplicative) inverse of a is a^{-1}, for an inverse function like cos you want \cos^{-1}\theta

 

[The Divine Zephyr]

$$\begin{array}P=A(1+\frac{r}{100})^n \\ \sqrt[n]{\frac{P}{A}}=\frac{r+100}{100} \\ r=100\sqrt[n]{\frac{P}{A}}-100\end{array}$$

 

[Norman]

Wick Contraction-

http://www.fzu.cz/~kolorenc/tex.php

This website has 2 or 3 possible implementations for Wick Contractions in QFT. I have not tried any, but will let you know how they work!

The simple_wick.tex file works very well. I could not get the other one to work. I also did not have any of the problems the author gives for simple_wick.tex.

Cheers

 

[Orion1]

expired post...

 

[Davorak]

I have a question
How much Tex is to much tex?

$$\begin{picture}(500,500)(0,0) \put(200.,89.3817){2} \put(300.,89.3817){3} \put(400.,89.3817){4} \put(500.,89.3817){5} \put(600.,89.3817){6} \put(93.4375,200.){2} \put(93.4375,300.){3} \put(93.4375,400.){4} \put(93.4375,500.){5} \put(93.4375,600.){6} \put(100,100){\circle{3}} \put(200,200){\circle{3}} \put(300,300){\circle{3}} \put(400,400){\circle{3}} \put(500,500){\circle{3}} \put(600,600){\circle{3}} \put(200.,100.){\line(0.,1.){5.30917}} \put(300.,100.){\line(0.,1.){5.30917}} \put(400.,100.){\line(0.,1.){5.30917}} \put(500.,100.){\line(0.,1.){5.30917}} \put(600.,100.){\line(0.,1.){5.30917}} \put(120.,100.){\line(0.,1.){3.1855}} \put(140.,100.){\line(0.,1.){3.1855}} \put(160.,100.){\line(0.,1.){3.1855}} \put(180.,100.){\line(0.,1.){3.1855}} \put(220.,100.){\line(0.,1.){3.1855}} \put(240.,100.){\line(0.,1.){3.1855}} \put(260.,100.){\line(0.,1.){3.1855}} \put(280.,100.){\line(0.,1.){3.1855}} \put(320.,100.){\line(0.,1.){3.1855}} \put(340.,100.){\line(0.,1.){3.1855}} \put(360.,100.){\line(0.,1.){3.1855}} \put(380.,100.){\line(0.,1.){3.1855}} \put(420.,100.){\line(0.,1.){3.1855}} \put(440.,100.){\line(0.,1.){3.1855}} \put(460.,100.){\line(0.,1.){3.1855}} \put(480.,100.){\line(0.,1.){3.1855}} \put(520.,100.){\line(0.,1.){3.1855}} \put(540.,100.){\line(0.,1.){3.1855}} \put(560.,100.){\line(0.,1.){3.1855}} \put(580.,100.){\line(0.,1.){3.1855}} \put(87.5,100.){\line(1.,0.){525.}} \put(100.,200.){\line(1.,0.){3.28125}} \put(100.,300.){\line(1.,0.){3.28125}} \put(100.,400.){\line(1.,0.){3.28125}} \put(100.,500.){\line(1.,0.){3.28125}} \put(100.,600.){\line(1.,0.){3.28125}} \put(100.,120.){\line(1.,0.){1.96875}} \put(100.,140.){\line(1.,0.){1.96875}} \put(100.,160.){\line(1.,0.){1.96875}} \put(100.,180.){\line(1.,0.){1.96875}} \put(100.,220.){\line(1.,0.){1.96875}} \put(100.,240.){\line(1.,0.){1.96875}} \put(100.,260.){\line(1.,0.){1.96875}} \put(100.,280.){\line(1.,0.){1.96875}} \put(100.,320.){\line(1.,0.){1.96875}} \put(100.,340.){\line(1.,0.){1.96875}} \put(100.,360.){\line(1.,0.){1.96875}} \put(100.,380.){\line(1.,0.){1.96875}} \put(100.,420.){\line(1.,0.){1.96875}} \put(100.,440.){\line(1.,0.){1.96875}} \put(100.,460.){\line(1.,0.){1.96875}} \put(100.,480.){\line(1.,0.){1.96875}} \put(100.,520.){\line(1.,0.){1.96875}} \put(100.,540.){\line(1.,0.){1.96875}} \put(100.,560.){\line(1.,0.){1.96875}} \put(100.,580.){\line(1.,0.){1.96875}} \put(100.,87.5){\line(0.,1.){525.}} \end{picture}$$

 

[Davorak]

That was not too much tex.

Limit is 20000 characters, interesting.

5 sin(2x) +5 x 0 to 10
$$\begin{picture}(200,200)(0,0) \put(40.,-4.24641){2.} \put(80.,-4.24641){4.} \put(120.,-4.24641){6.} \put(160.,-4.24641){8.} \put(200.,-4.24641){10.} \put(-2.625,40.){0.2} \put(-2.625,80.){0.4} \put(-2.625,120.){0.6} \put(-2.625,160.){0.8} \put(-2.625,200.){1.} \put(40.,0.){\line(0.,1.){2.12321}} \put(80.,0.){\line(0.,1.){2.12321}} \put(120.,0.){\line(0.,1.){2.12321}} \put(160.,0.){\line(0.,1.){2.12321}} \put(200.,0.){\line(0.,1.){2.12321}} \put(10.,0.){\line(0.,1.){1.27392}} \put(20.,0.){\line(0.,1.){1.27392}} \put(30.,0.){\line(0.,1.){1.27392}} \put(50.,0.){\line(0.,1.){1.27392}} \put(60.,0.){\line(0.,1.){1.27392}} \put(70.,0.){\line(0.,1.){1.27392}} \put(90.,0.){\line(0.,1.){1.27392}} \put(100.,0.){\line(0.,1.){1.27392}} \put(110.,0.){\line(0.,1.){1.27392}} \put(130.,0.){\line(0.,1.){1.27392}} \put(140.,0.){\line(0.,1.){1.27392}} \put(150.,0.){\line(0.,1.){1.27392}} \put(170.,0.){\line(0.,1.){1.27392}} \put(180.,0.){\line(0.,1.){1.27392}} \put(190.,0.){\line(0.,1.){1.27392}} \put(-3.,0.){\line(1.,0.){2100.}} \put(0.,40.){\line(1.,0.){13.125}} \put(0.,80.){\line(1.,0.){13.125}} \put(0.,120.){\line(1.,0.){13.125}} \put(0.,160.){\line(1.,0.){13.125}} \put(0.,200.){\line(1.,0.){13.125}} \put(0.,10.){\line(1.,0.){7.875}} \put(0.,20.){\line(1.,0.){7.875}} \put(0.,30.){\line(1.,0.){7.875}} \put(0.,50.){\line(1.,0.){7.875}} \put(0.,60.){\line(1.,0.){7.875}} \put(0.,70.){\line(1.,0.){7.875}} \put(0.,90.){\line(1.,0.){7.875}} \put(0.,100.){\line(1.,0.){7.875}} \put(0.,110.){\line(1.,0.){7.875}} \put(0.,130.){\line(1.,0.){7.875}} \put(0.,140.){\line(1.,0.){7.875}} \put(0.,150.){\line(1.,0.){7.875}} \put(0.,170.){\line(1.,0.){7.875}} \put(0.,180.){\line(1.,0.){7.875}} \put(0.,190.){\line(1.,0.){7.875}} \put(0.,-4.99793){\line(0.,1.){209.954}} \put(2.,154.402){\circle{3}} \put(4.,136.648){\circle{3}} \put(6.,117.433){\circle{3}} \put(8.,97.5225){\circle{3}} \put(10.,77.711){\circle{3}} \put(12.,58.7882){\circle{3}} \put(14.,41.5083){\circle{3}} \put(16.,26.5603){\circle{3}} \put(18.,14.5401){\circle{3}} \put(20.,5.92694){\circle{3}} \put(22.,1.06418){\circle{3}} \put(24.,0.145665){\circle{3}} \put(26.,3.20803){\circle{3}} \put(28.,10.1292){\circle{3}} \put(30.,20.6332){\circle{3}} \put(32.,34.3013){\circle{3}} \put(34.,50.5887){\circle{3}} \put(36.,68.8459){\circle{3}} \put(38.,88.3451){\circle{3}} \put(40.,108.309){\circle{3}} \put(42.,127.942){\circle{3}} \put(44.,146.46){\circle{3}} \put(46.,163.127){\circle{3}} \put(48.,177.276){\circle{3}} \put(50.,188.345){\circle{3}} \put(52.,195.892){\circle{3}} \put(54.,199.616){\circle{3}} \put(56.,199.369){\circle{3}} \put(58.,195.16){\circle{3}} \put(60.,187.158){\circle{3}} \put(62.,175.68){\circle{3}} \put(64.,161.186){\circle{3}} \put(66.,144.252){\circle{3}} \put(68.,125.554){\circle{3}} \put(70.,105.837){\circle{3}} \put(72.,85.888){\circle{3}} \put(74.,66.5012){\circle{3}} \put(76.,48.4499){\circle{3}} \put(78.,32.4537){\circle{3}} \put(80.,19.1504){\circle{3}} \put(82.,9.07026){\circle{3}} \put(84.,2.61524){\circle{3}} \put(86.,0.0426397){\circle{3}} \put(88.,1.45503){\circle{3}} \put(90.,6.79609){\circle{3}} \put(92.,15.8529){\circle{3}} \put(94.,28.2644){\circle{3}} \put(96.,43.5358){\circle{3}} \put(98.,61.0582){\circle{3}} \put(100.,80.1331){\circle{3}} \put(102.,100.){\circle{3}} \put(104.,119.867){\circle{3}} \put(106.,138.942){\circle{3}} \put(108.,156.464){\circle{3}} \put(110.,171.736){\circle{3}} \put(112.,184.147){\circle{3}} \put(114.,193.204){\circle{3}} \put(116.,198.545){\circle{3}} \put(118.,199.957){\circle{3}} \put(120.,197.385){\circle{3}} \put(122.,190.93){\circle{3}} \put(124.,180.85){\circle{3}} \put(126.,167.546){\circle{3}} \put(128.,151.55){\circle{3}} \put(130.,133.499){\circle{3}} \put(132.,114.112){\circle{3}} \put(134.,94.1626){\circle{3}} \put(136.,74.4459){\circle{3}} \put(138.,55.748){\circle{3}} \put(140.,38.8142){\circle{3}} \put(142.,24.3198){\circle{3}} \put(144.,12.8424){\circle{3}} \put(146.,4.83979){\circle{3}} \put(148.,0.6309){\circle{3}} \put(150.,0.383539){\circle{3}} \put(152.,4.10757){\circle{3}} \put(154.,11.6545){\circle{3}} \put(156.,22.7236){\circle{3}} \put(158.,36.8733){\circle{3}} \put(160.,53.5398){\circle{3}} \put(162.,72.0585){\circle{3}} \put(164.,91.6911){\circle{3}} \put(166.,111.655){\circle{3}} \put(168.,131.154){\circle{3}} \put(170.,149.411){\circle{3}} \put(172.,165.699){\circle{3}} \put(174.,179.367){\circle{3}} \put(176.,189.871){\circle{3}} \put(178.,196.792){\circle{3}} \put(180.,199.854){\circle{3}} \put(182.,198.936){\circle{3}} \put(184.,194.073){\circle{3}} \put(186.,185.46){\circle{3}} \put(188.,173.44){\circle{3}} \put(190.,158.492){\circle{3}} \put(192.,141.212){\circle{3}} \put(194.,122.289){\circle{3}} \put(196.,102.478){\circle{3}} \put(198.,82.5673){\circle{3}} \put(200.,63.3521){\circle{3}} \put(202.,45.5979){\circle{3}} \end{picture}$$

hmm can not put things too close together.

I am having trouble using negative number. I should just displace everything.
What is a better way to do these graphs, so they take fewer commands?

 

[Davorak]

10 BesselJ[0,z]

$$\newcommand{\strecke}[2]{\qbezier(#1)(#1)(#2)} \begin{picture}(210,210)(0,0) \put(-100.,-2.97891){-10} \put(-50.,-2.97891){-5} \put(50.,-2.97891){5} \put(100.,-2.97891){10} \put(-2.625,-40.){-4} \put(-2.625,-20.){-2} \put(-2.625,20.){2} \put(-2.625,40.){4} \put(-2.625,60.){6} \put(-2.625,80.){8} \put(-2.625,100.){10} \strecke{-100.,0.}{-100.,1.48945} \strecke{-50.,0.}{-50.,1.48945} \strecke{50.,0.}{50.,1.48945} \strecke{100.,0.}{100.,1.48945} \strecke{-90.,0.}{-90.,0.893672} \strecke{-80.,0.}{-80.,0.893672} \strecke{-70.,0.}{-70.,0.893672} \strecke{-60.,0.}{-60.,0.893672} \strecke{-40.,0.}{-40.,0.893672} \strecke{-30.,0.}{-30.,0.893672} \strecke{-20.,0.}{-20.,0.893672} \strecke{-10.,0.}{-10.,0.893672} \strecke{10.,0.}{10.,0.893672} \strecke{20.,0.}{20.,0.893672} \strecke{30.,0.}{30.,0.893672} \strecke{40.,0.}{40.,0.893672} \strecke{60.,0.}{60.,0.893672} \strecke{70.,0.}{70.,0.893672} \strecke{80.,0.}{80.,0.893672} \strecke{90.,0.}{90.,0.893672} \strecke{-105.,0.}{105.,0.} 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\strecke{3.40077,97.1295}{4.59219,94.797} \strecke{4.59219,94.797}{6.6086,89.376} \strecke{6.6086,89.376}{8.81609,81.4929} \strecke{8.81609,81.4929}{12.9293,62.3771} \strecke{12.9293,62.3771}{17.3271,37.9057} \strecke{17.3271,37.9057}{21.5036,13.8125} \strecke{21.5036,13.8125}{26.0349,-9.84447} \strecke{26.0349,-9.84447}{28.1534,-19.128} \strecke{28.1534,-19.128}{30.3981,-27.3252} \strecke{30.3981,-27.3252}{32.3145,-32.8208} \strecke{32.3145,-32.8208}{33.3235,-35.1219} \strecke{33.3235,-35.1219}{34.4243,-37.1524} \strecke{34.4243,-37.1524}{34.991,-38.0004} \strecke{34.991,-38.0004}{35.5169,-38.6668} \strecke{35.5169,-38.6668}{36.0614,-39.2347} \strecke{36.0614,-39.2347}{36.5549,-39.6423} \strecke{36.5549,-39.6423}{36.7884,-39.7998} \strecke{36.7884,-39.7998}{37.0408,-39.9446} \strecke{37.0408,-39.9446}{37.2589,-40.0485} \strecke{37.2589,-40.0485}{37.4982,-40.14} \strecke{37.4982,-40.14}{37.7529,-40.2115} \strecke{37.7529,-40.2115}{38.0218,-40.2583} 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10 BesselJ[1,z]

$$\newcommand{\strecke}[2]{\qbezier(#1)(#1)(#2)} \begin{picture}(210,210)(0,0) \put(-100.,-2.47137){-10} \put(-50.,-2.47137){-5} \put(50.,-2.47137){5} \put(100.,-2.47137){10} \put(-2.625,-60.){-6} \put(-2.625,-40.){-4} \put(-2.625,-20.){-2} \put(-2.625,20.){2} \put(-2.625,40.){4} \put(-2.625,60.){6} \strecke{-100.,0.}{-100.,1.23569} \strecke{-50.,0.}{-50.,1.23569} \strecke{50.,0.}{50.,1.23569} \strecke{100.,0.}{100.,1.23569} \strecke{-90.,0.}{-90.,0.741412} \strecke{-80.,0.}{-80.,0.741412} \strecke{-70.,0.}{-70.,0.741412} \strecke{-60.,0.}{-60.,0.741412} \strecke{-40.,0.}{-40.,0.741412} \strecke{-30.,0.}{-30.,0.741412} \strecke{-20.,0.}{-20.,0.741412} \strecke{-10.,0.}{-10.,0.741412} \strecke{10.,0.}{10.,0.741412} \strecke{20.,0.}{20.,0.741412} \strecke{30.,0.}{30.,0.741412} \strecke{40.,0.}{40.,0.741412} \strecke{60.,0.}{60.,0.741412} \strecke{70.,0.}{70.,0.741412} \strecke{80.,0.}{80.,0.741412} \strecke{90.,0.}{90.,0.741412} \strecke{-105.,0.}{105.,0.} \strecke{0.,-60.}{1.3125,-60.} 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[JesseM]

Why does the first one work while the second one is messed up?

$$\frac{2AB}{t^{'}_A - t_A} = c$$

$$\frac{2AB}{{t^'}_A - t_A} = c$$

 

[anomoly]

How would i go about getting the Amp to space a few characters away from the t(not) symbol?
$$I = \sqrt {[\frac {22.6T + 0.088t -490.58} {5 * 10^{-5} * t}] * t_{0}} Amp$$

 

[dextercioby]

Why does the first one work while the second one is messed up?

$$\frac{2AB}{t^{'}_A - t_A} = c$$

$$\frac{2AB}{{t^'}_A - t_A} = c$$

Because you screwed up the code.Specifically,because your first code differs from the second through misplaced "{" which changes the way the "\frac" would work...

Daniel.

 

[SergejVictorov]

$$\lim_{\substack{x\rightarrow 0\\}} f(x,y)$$

 

[quantumdude]

I've got a question: Is it possible to make Feynman diagrams with our LaTeX hack? If not, would it be terribly difficult to create?

Thanks,

 

[The Divine Zephyr]

$$A=60+(S+\Delta P) \times \frac{L_2}{L_1}$$

 

[gnome]

How would i go about getting the Amp to space a few characters away from the t(not) symbol?
$$I = \sqrt {[\frac {22.6T + 0.088t -490.58} {5 * 10^{-5} * t}] * t_{0}} Amp$$

$$I = \sqrt {[\frac {22.6T + 0.088t -490.58} {5 * 10^{-5} * t}] * t_{0}} \quad Amp$$

If you want it still farther away, use \qquad instead of \quad.
If you want it closer, use \;

 

[hellfire]

I posted this today in the cosmology forum:

$$dt = \frac{da}{H_0 \left(\frac{\Omega_{m,0}}{a} + a^2 \Omega_{\Lambda,0}\right)^{\frac{1}{2}}}$$

How can I made that the first "Omega" and "a" have the same size than the second?

 

[dextercioby]

U can't.Note that the whole fraction must be on equal footing a^{2}Omega...That means that the denominator & the numerator would be smaller than they'd be without the fraction line.

Daniel.