MathStudio (spacetime for windows ce users)- By far the best advanced graphing calculator period

[james27007]

For any engineer or advanced math student, this $20 app is a must. Back when I had my AT&T tilt, when I took calculus, I used a windows mobile app called space time. It was hands down the best calculator for everything from basic math, graphing (2D, 3D and Time based) to advanced calculus and differential equations. Well when I moved to Android, I kept my tilt because of this app. Well I just found they released an Android version and it kicks the crap out of any Ti84 out there

https://play.google.com/store/apps/details?id=com.PomegranateSoftware.MathStudio

 

[euph_22]

I'm a fan of Andie graph and Wolfram Alpha (I paid for the app, but if your cheap the website works just fine).