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

You are not logged in.

- Topics: Active | Unanswered

**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

Happy Valentine's day to everyone, and a to all the ladies on the forum.

*Last edited by mikau (2007-02-14 07:24:14)*

A logarithm is just a misspelled algorithm.

Offline

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,585

Happy Valentine's Day!! I'll have to graph that myself to see the heart form myself...

**igloo** **myrtilles** **fourmis**

Offline

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

Haha, very nice. How come you've plotted a Polar graph on Cartesian co-ordinates though?

Why did the vector cross the road?

It wanted to be normal.

Offline

**Zhylliolom****Real Member**- Registered: 2005-09-05
- Posts: 412

Haha, I remember Mikau's cardoid.

Offline

**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

mathsyperson wrote:

Haha, very nice. How come you've plotted a Polar graph on Cartesian co-ordinates though?

Ask the designers of the graphing calculator!

This is just one of a whole mess of heart equations I designed a while back. You might recall this thread: http://www.mathsisfun.com/forum/viewtopic.php?id=3872

(edit) I just modified the equation and graph a bit. Doesn't get much better than that I'd say!

So do any of us math nerds actually have any valentines?

*Last edited by mikau (2007-02-14 07:26:06)*

A logarithm is just a misspelled algorithm.

Offline

**Zhylliolom****Real Member**- Registered: 2005-09-05
- Posts: 412

I have four of them

Offline

**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

Dang...

A logarithm is just a misspelled algorithm.

Offline

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

Ah, that thread must have been made while my internet was broken, making me miss it. Until now, that is. I like how you can change some parameters to get all kinds of different heart shapes. Now you need to figure out how to make them 3D!

According to one of my lecturers, the equation for love can be found as follows:

"Love" pronounced slightly differently becomes "'l'oeuf" (possibly misspelt)

This is French for "The egg."

Eggs are elliptical in shape.

Therefore, the equation for love is x²/a² + y²/b² = 1.

Why did the vector cross the road?

It wanted to be normal.

Offline

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,559

Ahhh... Valentines and speaking French ...

Husband, trying to be romantic, says "Je t'adore".

Wife responds "Shut the darn door yourself"

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

Offline

**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

hehehaha... good one!

A logarithm is just a misspelled algorithm.

Offline

**Ricky****Moderator**- Registered: 2005-12-04
- Posts: 3,791

Zhylliolom wrote:

Haha, I remember Mikau's cardoid.

I like the ring of that. Mikau's cardioid.

"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."

Offline

**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

I made a whole thread on it in case you didn't see. I might also make a thread on designing shapes using polar equations. I managed to develop some pretty usefull techniques.

A logarithm is just a misspelled algorithm.

Offline

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

hmmm i hate valentijnes day no offence. its a scam and otherwise for my special case a great event for bullying me! and it did happen! this guy call rick got a piece of paper and wrote roses are red and blablabla and gave it to louis(this REALLY ANNOYING ERO SENNIN WHO SINGS OPERA MUSIC! WORDS CANT EVEN DESCRIBE HOW ANNOYING HE IS!) and said it was from me. that pushed the boundaries and i then cried for 1 hour all the way through history but i got rick in a thursday detention and i missed 20 minuites from french. go me!

Presenting the Prinny dance.

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

Offline

**chatalot****Real Member**- Registered: 2006-12-23
- Posts: 125

Ahhhh......

I love how people can be the bad guys and yet the still get a very happy ending.

For the world. For your country. For YOU.

Offline

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

Necesito los globos. Y un corrazón-bombones. Un beso, beso!

Offline

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

not really...

and devante i dont know what the heck ur talking about i dont talk spanish or brazilian or whatever youre talking in. all i know is bonbon which is chocalate?

Presenting the Prinny dance.

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

Offline

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

'Bombones' means 'chocolates'.

Also, brazilian isn't a language. O.o

Perhaps you mean portuguese?

Although I was speaking Spanish.

No habla español?

But this topic isn't about Spanish.

I hope everyone had a nice Valentine's Day.

Valentine's Day is not very special to me as I do not celebrate it and it is a normal day for me.

Offline

**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

I don't celebrate it formally, but heck I see no reason to to ignore it.

It usually depresses me because I never have a valentine.

A logarithm is just a misspelled algorithm.

Offline

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,559

You will, it is just a matter of time.

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

Offline

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

At our school library the librarians were giving a chocolate to everyone who borrowed a book. It was a very tasty day.

Offline

**justlookingforthemoment****Moderator**- Registered: 2005-05-26
- Posts: 2,161

Toast wrote:

It was a very tasty day.

Yes, I agree! Our form teacher gave us all strawberry Freddos ... and we had a Valentine's Day 'party' in Ethics. It was more like an excuse to eat food during class, but it was still good. We got to eat cake while watching 'School Ties' ...

Offline

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

I'd rather have had the day off on Valentine's Day...interesting stories!

Offline

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

i personally think valentines day is a scam

Presenting the Prinny dance.

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

Offline

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

Valentine's Day isn't a scam, there was a person named Valentine. Valentine's Day is a day to remember him.

Offline

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

well i still think its a scam to get money from children and people.

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

Offline