Ecuaciones! app for iPhone and iPad

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Ecuaciones! is an app that helps you solve many kinds of equations and vector operations.
While using Ecuaciones! you can solve quadratic equations with support for imaginary numbers, you can also solve systems of equations with two or three variables.
Also you can do two of the most common and useful vector operations, Dot and Cross Products.
Ecuaciones! has a powerful calculator built in, that is super accesible from anywhere in the app. You can do various calculus and when you are done, the calculator will take you right where you left remembering everything that had been typed before.