Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

Let's put all the different forum features here as an "easy reference".

**The Hide Tag**

We have a "Hide" tag, which lets you enter your answer but people have to click on a button to see it. This lets other people have a go without seeing your answer. It doesn't *really* hide it, but does remove it by one click.

You use it like this (use [] not {} ):

My answer {hide=is this}42 !{/hide}

My answer

**The Math Tag**

Allows you to use LaTeX to format math expressions very neatly.

See: http://www.mathsisfun.com/forum/viewtopic.php?id=1581

Also: A LaTeX tutorial.

**Other Tags**

```
M[sub]a[/sub]=x[sup]e[/sup]
[color=#ccccdd]hhhdaba[/color]
[align=left]left[/align]
[align=center]center[/align]
[align=right]right[/align]
[hr]
```

M[sub]a[/sub]=x[sup]e[/sup]

[align=left]left[/align]

[align=center]center[/align]

[align=right]right[/align]

[hr]

Instructions for more basic tags can be found here.

**Special Smileys**

To make any of these work, put a ":" in front of the text:

alpha=α and=∧ ang=∠ asymp=≈ beta=β bull=• cap=∩ cong=≅ cup=∪

deg=° Delta=Δ delta=δ divide=÷ empty=∅ epsilon=ε equiv=≡ exist=∃

fnof=ƒ forall=∀ frac12=½ frac14=¼ frac34=¾ gamma=γ ge=≥

harr=↔ hArr=⇔ infin=∞ int=∫ isin=∈ lambda=λ laquo=« larr=← lArr=⇐ le=≤

mu=μ nabla=∇ ne=≠ ni=∋ notin=∉ nsub=⊄ omega=ω oplus=⊕ otimes=⊗

part=∂ Phi=Φ pi=π plusmn=± prime=′ Prime=″ prod=∏ prop=∝

radic=√ raquo=» rarr=→ rArr=⇒ rho=ρ

Sigma=Σ sigma=σ sim=∼ sube=⊆ sub=⊂ sum=∑ sup1=¹ sup2=² sup3=³ supe=⊇ sup=⊃

tau=τ there4=∴ theta=θ times=× xi=ξ zeta=ζ

I also did a trick with some of them, for example "pi" looks a lot more like pi really does (π vs π) because I used a different font for it.

Example usage:

π ≅ 22 ÷ 7

`:pi :cong 22 :divide 7`

**Image Upload**

To place in image in your post:

Click "Post Reply"

Below "Image Upload" select "1" for Upload Slots (you can have up to 20)

Click "Browse..." and find an image file

Press "Submit"

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**krassi_holmz****Real Member**- Registered: 2005-12-02
- Posts: 1,908

`[color=(the color in hex fomat RGB "#00ff00" must produce green)] The thing to be colored [/color]`

Here is it :

Green

IPBLE: Increasing Performance By Lowering Expectations.

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**Toast****Real Member**- Registered: 2006-10-08
- Posts: 1,321

Wow I never knew you could type symbols without latex

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**Devantè****Real Member**- Registered: 2006-07-14
- Posts: 6,400

Go to the Character Map...

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**espeon****Real Member**- Registered: 2006-02-05
- Posts: 2,586

Presenting the Prinny dance.

Take this dood! Huh doood!!! HUH DOOOOD!?!? DOOD HUH!!!!!! DOOOOOOOOOOOOOOOOOOOOOOOOOD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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**graciecc12****Member**- Registered: 2008-03-20
- Posts: 2

hi. one quick question. how do i START a new post? i know how to reply to one like this, but how do i start one?

Two things keep us from living in the present. Past and future.

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

The 'post topic' button appears when you're in a board (eg. Introductions). It's in roughly the same place as the 'post reply' button is when you're in a topic.

Why did the vector cross the road?

It wanted to be normal.

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**U7109****Real Member**- Registered: 2007-03-19
- Posts: 485

I haven't used the Hide Tag and Colour Tag for some time, and I'm just testing it out.

*Last edited by Chocó (2008-03-22 18:15:51)*

"Reality leaves a lot to the imagination," ~ John Lennon

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**Tigeree****Member**- Registered: 2005-11-19
- Posts: 13,847

It's so creepy when the post's r really long it seriously does make me dizzy which is fun sometimes but then i get sick.

Hello Choco!

People don't notice whether it's winter or summer when they're happy.

~ Anton Chekhov

Cheer up, emo kid.

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**narender****Member**- Registered: 2009-02-26
- Posts: 2

hai all

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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 14,381

Hi narendar!

Welcome to the forum!!!

You could've started a new thread!

Character is who you are when no one is looking.

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**careless25****Real Member**- Registered: 2008-07-24
- Posts: 555

Hi and Welcome Narender!!

Like ganesh already said before me..you could have started a new thread!

Hope you enjoy it here.

See ya around!

C25

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**Mahamaya****Member**- Registered: 2009-11-21
- Posts: 6

Thanks for the insight all. But i'd like to know how to make text bigger. I surf using my mobile phone and most times i find it difficult viewing the solutions to most math problems(and its not the font size of my phone as that have been moderately increased) ....and since the solutions come highlighted when i click instead of having it go bigger it ends up being distorted.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,250

Hi;

Here is what I do. It doesn't work on all the forums that use latex but it works here.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**ZHero****Real Member**- Registered: 2008-06-08
- Posts: 1,889

π

i'm loving it!

π π π π

i didn't know this!!

If two or more thoughts intersect with each other, then there has to be a point.

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**ZHero****Real Member**- Registered: 2008-06-08
- Posts: 1,889

can i have a colored π??

let's try..

red π

green π

blue π

If two or more thoughts intersect with each other, then there has to be a point.

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**ZHero****Real Member**- Registered: 2008-06-08
- Posts: 1,889

Here's a List of 140 Named HTML Colors...

Just **use the Name written in the colors to get the color** (instead of writing the code --> #??????) and you're done!!

e.g {color=MediumAquaMarine}text{/color}

**Note:** Replace "{" and "}" in the above example with "[" and "]" respectively.

If you don't find Your Color below then plz contact Admin.

**Black**

**Navy**

**DarkBlue**

**MediumBlue**

**Blue**

**DarkGreen**

**Green**

**Teal**

**DarkCyan**

**DeepSkyBlue**

**DarkTurquoise**

**MediumSpringGreen**

**Lime**

**SpringGreen**

**Aqua**

**Cyan**

**MidnightBlue**

**DodgerBlue**

**LightSeaGreen**

**ForestGreen**

**SeaGreen**

**DarkSlateGray**

**LimeGreen**

**MediumSeaGreen**

**Turquoise**

**RoyalBlue**

**SteelBlue**

**DarkSlateBlue**

**MediumTurquoise**

**Indigo**

**DarkOliveGreen**

**CadetBlue**

**CornflowerBlue**

**MediumAquaMarine**

**DimGray**

**SlateBlue**

** OliveDrab**

**SlateGray**

**LightSlateGray**

**MediumSlateBlue**

**LawnGreen**

**Chartreuse**

**Aquamarine**

**Maroon**

**Purple**

**Olive**

**Gray**

**SkyBlue**

**LightSkyBlue**

**BlueViolet**

**DarkRed**

**DarkMagenta**

**SaddleBrown**

**DarkSeaGreen**

**LightGreen**

**MediumPurple**

**DarkViolet**

**PaleGreen**

** DarkOrchid**

**YellowGreen**

**Sienna**

**Brown**

**DarkGray**

**LightBlue**

**GreenYellow**

**PaleTurquoise**

**LightSteelBlue**

**PowderBlue**

**FireBrick**

**DarkGoldenRod**

** MediumOrchid**

**RosyBrown**

**DarkKhaki**

**Silver**

**MediumVioletRed**

**IndianRed**

**Peru**

**Chocolate**

**Tan**

**LightGrey**

**PaleVioletRed**

**Thistle**

**Orchid**

**GoldenRod**

**Crimson**

**Gainsboro**

**Plum**

**BurlyWood**

**LightCyan**

**Lavender**

**DarkSalmon**

**Violet**

**PaleGoldenRod**

**LightCoral**

**Khaki**

**AliceBlue**

**HoneyDew**

**Azure**

**SandyBrown**

**Wheat**

**Beige**

**WhiteSmoke**

**MintCream**

**GhostWhite**

**Salmon**

**AntiqueWhite**

**Linen**

**LightGoldenRodYellow**

**OldLace**

**Red**

**Fuchsia**

**Magenta**

**DeepPink**

**OrangeRed**

**Tomato**

**HotPink**

**Coral**

**Darkorange**

**LightSalmon**

**Orange**

**LightPink**

**Pink**

**Gold**

**PeachPuff**

**NavajoWhite**

**Moccasin**

**Bisque**

**MistyRose**

**BlanchedAlmond**

**PapayaWhip**

**LavenderBlush**

**SeaShell**

**Cornsilk**

**LemonChiffon**

**FloralWhite**

**Snow**

**Yellow**

**LightYellow**

**Ivory**

** White**

If two or more thoughts intersect with each other, then there has to be a point.

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**quittyqat****Member**- Registered: 2009-04-08
- Posts: 1,213

In some forum skins, this text is nearly invisible. Highlight the text.

Cool! I doubt anyone else knew all those colors. Looks like I won't need the Hexadecimal Colors tool anymore to get the right color!

bobbym wrote:

Hi;

Here is what I do. It doesn't work on all the forums that use latex but it works here.

What happens if you \Huge and \HUGE?

Interesting... It works with Huge, but not HUGE or Tiny.

*Last edited by quittyqat (2010-05-28 09:16:16)*

I'll be here at least once every month. XP

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,250

Hi hira2;

Welcome to the forum.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**mathaholic****Member**- From: Juliania
- Registered: 2012-11-29
- Posts: 2,845
- Website

π

Did it!

*Last edited by julianthemath (2012-12-25 19:35:18)*

"Double the fun, double the thrill, double the coolness" - Julianthewiki

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**mathgogocart****Member**- Registered: 2012-04-29
- Posts: 1,426

text

Hey.

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**mathaholic****Member**- From: Juliania
- Registered: 2012-11-29
- Posts: 2,845
- Website

:sqrt

Does this exist?

"Double the fun, double the thrill, double the coolness" - Julianthewiki

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

Do you want the latex command? try \sqrt{number in here}

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**mathaholic****Member**- From: Juliania
- Registered: 2012-11-29
- Posts: 2,845
- Website

"Double the fun, double the thrill, double the coolness" - Julianthewiki

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**mathaholic****Member**- From: Juliania
- Registered: 2012-11-29
- Posts: 2,845
- Website

<b>123</b>

<i>123</i>

<u>123</u>

Does it work?

"Double the fun, double the thrill, double the coolness" - Julianthewiki

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