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WhiteKnight · Post by **WhiteKnight** » Tue May 12, 2009 12:17 am

Zaffron wrote:x = b+-Sqrt(b²-4ac)
—————→2a

Why your writing quadratic formula?

Zaffron · Post by **Zaffron** » Tue May 12, 2009 12:51 am

I felt like it and nice job recognizin it

We are learning it in class and it makes me mad when I try to use a calculator with a quadratic problem... D :<

WhiteKnight · Post by **WhiteKnight** » Tue May 12, 2009 1:10 am

Zaffron wrote:I felt like it and nice job recognizin it

We are learning it in class and it makes me mad when I try to use a calculator with a quadratic problem... D :<

Make me happy that I already developed the program to do it for me.

S3th · Post by **S3th** » Tue May 12, 2009 1:03 pm

^
LOL
I developed a program the other night that does perimeter and area of a heap of different shapes :3

Zaffron · Post by **Zaffron** » Tue May 12, 2009 9:41 pm

So are there any applicable uses of quadratics?

WhiteKnight · Post by **WhiteKnight** » Tue May 12, 2009 10:19 pm

Zaffron wrote:So are there any applicable uses of quadratics?

Sure there is!

There um... errmm.... TIME AND SPACE THEORY! yea that right!

Allosentient · Post by **Allosentient** » Tue May 12, 2009 10:54 pm

Zaffron wrote:I felt like it and nice job recognizin it

We are learning it in class and it makes me mad when I try to use a calculator with a quadratic problem... D :<

If you have a TI-89 you can use macros so you dont have to type all that.

Zaffron · Post by **Zaffron** » Wed May 13, 2009 6:21 am

GOD I have the wierdest problem for my homework... I have to solve a multiplication table out of random letters. Well probably not random, but I don't have the concentration to finish it. Just for purposes if anyone wants to see it, not asking for answers.

F x I = AB
F x A = BI
F x B = CH
F x E = GB
F x F = HI
F x J = ID
F x H = IF
F x G = JH
F x C = F

I have already deduced that C has to equal 1, since F x C = F, which itself. And of course, only numbers times one can equal themselves. OK What now? Lets look at all the results with C since I know what C is. Woohoo, a whole 1 thing equals something with a 1 in it. That was helpful. Ok so CH = something in the 10's to 20's. What does H equal? Hm... Assuming BI and GB are higher and lower, then... it must be something inbetween them -_-

Oh boy, this is gonna take all night QQ

jeetee · Post by **jeetee** » Wed May 13, 2009 10:23 am

One of the things you can deduct easily is that F can't be a 9, since there are 2 products starting with I

plope0726 · Post by **plope0726** » Wed May 13, 2009 2:20 pm

Zaffron wrote:GOD I have the wierdest problem for my homework... I have to solve a multiplication table out of random letters. Well probably not random, but I don't have the concentration to finish it. Just for purposes if anyone wants to see it, not asking for answers.

F x I = AB
F x A = BI
F x B = CH
F x E = GB
F x F = HI
F x J = ID
F x H = IF
F x G = JH
F x C = F

I have already deduced that C has to equal 1, since F x C = F, which itself. And of course, only numbers times one can equal themselves. OK What now? Lets look at all the results with C since I know what C is. Woohoo, a whole 1 thing equals something with a 1 in it. That was helpful. Ok so CH = something in the 10's to 20's. What does H equal? Hm... Assuming BI and GB are higher and lower, then... it must be something inbetween them -_-

Oh boy, this is gonna take all night QQ

Are the products in this case, such as AB the same as A x B? If so than you can deduce that CH = H (1 x H) and F x H = IF also equals AB. (F x I = AB).

Zaffron · Post by **Zaffron** » Wed May 13, 2009 7:49 pm

Well it got corrected today, and it turned out that it was the 8's times table

plope0726 · Post by **plope0726** » Wed May 13, 2009 8:31 pm

Zaffron wrote:Well it got corrected today, and it turned out that it was the 8's times table

hmmm...I don't see it...but whatever.

S3th · Post by **S3th** » Thu May 14, 2009 1:22 pm

Zaffron wrote:Well it got corrected today, and it turned out that it was the 8's times table

How the fu-

plope0726 · Post by **plope0726** » Thu May 14, 2009 4:43 pm

I know....you could really plug in any number you want for f and make it that times table...

Zaffron · Post by **Zaffron** » Fri May 15, 2009 12:15 am

S3th wrote:
Zaffron wrote:Well it got corrected today, and it turned out that it was the 8's times table
How the fu-

That was my first reaction...

Oh and thanks for the idea of making a quadratic formula program WhiteKnight.
Its nothing special, only about 9 lines of code, but it saves a lot of brain ache and going "Wait how did that just happen?". I was sitting in class today with all sorts of quadratic problems being done. I did the problem the way the correct person did it but I somehow got it wrong which really boggles me.