## iOS Applications

### Quadratic Formula Solver

QuadForm for iOS.

Quadratic Formula Solver solves for the real (or complex) roots and the discriminant of quadratic equations.

Quadratic equations are frequently used in many high school and college level courses; including Algebra, Calculus, Chemistry, and Physics.

### Proportion Solver

Easily solve proportions without pen and paper.

Proportion Solver solves proportions, which are equations with two ratios. Enter a complete ratio and then a value for the numerator or denominator for the other ratio, and Proportion Solver will complete the incomplete ratio.

Proportions are useful for converting values based on relationships (e.g. width/height, Fahrenheit/Celsius, weight/height, mph/meters, U.S. dollars/Euros, pixels/inches, etc.) and are frequently used in high school and college level courses.

### Playing Cards

Cards for the 21^{st} century

Playing Cards for the iPhone and iPod touch lets you play virtually **any multiplayer card game** with up to 4 players. Pass and play with one device or connect with up to 4 devices to play wirelessly.

For features, screenshots, and more information, visit playingcardsapp.com.