<GPL3> [AS] Quadratic Equation Solver 1.0

[dooglehead]

This is the first app that i made. It solves quadratic equations using the quadratic formula. To use it, just enter the values for a, b, and c, and press enter. It can give both real and complex solutions, but it may not reduce fractions in complex answers. For example: if you enter 1 for a, 4 for b and 5 for c, it will give the solutions
(-4-2i)/2 and (-4+2i)/2, but it can be reduced to -2-i and -2+i.

Update: version 1.01 - fixed a bug that made it so a decimal point cannot be entered after entering another number with a decimal point. (2/6/10)

Update: version 1.02 - prevents user from entering only ".", "-", and "-.". It will also now reduce fractions. (2/7/10)

Update: version 1.03 - fixed a rounding problem and made it so that a complex solution will always include a single + or - instead of +- or --. (2/11/10)

ccgame:
http://gideos.zoomshare.com/files/Quadratic.ccgame

source:
http://gideos.zoomshare.com/files/ZuneQuad.zip

[HAVOKKSKI]

Nice job! Im sure it will prove handy in my math crammed semesters to come.

[dooglehead]

Added an update to fix a bug.

[DJAlmix]

Err...this would have come in handy a while ago lol thx

Also the download does not work

[dooglehead]

Originally Posted by DJAlmix

Err...this would have come in handy a while ago lol thx

Also the download does not work

The download works when I try it. Is anyone else having downloading problems?

[itsnotabigtruck]

I just checked and both links would appear to be operational.

This looks rather useful - what would be even better is a basic CAS implementation that supports entering expressions and applying simplification rules.

[Geniusdog254]

Originally Posted by itsnotabigtruck

I just checked and both links would appear to be operational.

This looks rather useful - what would be even better is a basic CAS implementation that supports entering expressions and applying simplification rules.

+1

[kdog1234]

awsome just learning this stuff lol ill tell teacher im using zune for caculator lol

[Sukatto]

Error 2600. The package contains files that should not be trusted.

Anyone know what this means?

[dooglehead]

Originally Posted by Sukatto

Error 2600. The package contains files that should not be trusted.

Anyone know what this means?

Did you install zune extensions for xna? If not, you can download them here. If that is not the problem then I do not know what it is.

[Druhue]

I made an account on this site just so I could comment on here. THANK YOU. There as so many times in my chem class, since we just got into equilibrium problems that deal with quadratic, that since the problem is already 3 pages long and one of the last steps is throw some numbers in the quadratic.....this will help and save me a bit of ink. Thanks a lot

[kcoppock]

Good job on the app!

I know this is an old thread, but I went ahead and designed some new artwork for it, and made a few minor code modifications to accommodate the new layout. I've uploaded them here:

drop.io quadratic

Screenshot:



(I apologize if a double post happens, it's telling me this is a duplicate post, but the post is not appearing in the thread)

[street]

Wow that looks really good

[kcoppock]

Thanks street! I'm considering trying to add some sort of animation when you press a key, if I get some spare time.

[dooglehead]

That does look good. Sorry if the source is a mess. It was the first thing I made with XNA, and the first thing I made with C# other than console applications.

[kcoppock]

No not at all, you did good with it. I liked the way you had the touch positions set up; I'd have had a separate if statement for each one, your way was clever. I was just bored at work, haha, and figured I'd have some fun with the design.