Quick Graph... plotting your ecuations

Quick Graph is a great graphic calculator where you can plot 2D or 3D equations, zoom or drag them as you want.It comes with an equation library and also you can plot up to 6 cartesian, spherical, polar or cylindrical equations.

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In my way of thinking, this is a very well made free app and i´m sure that it will help a lot of math or physic students, or those who work in this field.

Rating: 9/10
Price: Free

Instapaper Free, read anything you want later

Instapaper free is a very interesting tool that let you read news, articules, blog posts and whatever you want, without an internet connection.




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Go to Instapaper.com, sign up with just a username or e-mail.



Install the Instapaper bookmark, dragging it onto your bookmarks toolbar, and press it when you don´t have time to read at the moment.



I think this app is one of those that makes your iPod Touch/iPhone, sometimes, really useful and indispensable .

Rating: 8/10
Price: Free.

RemotePad

RemotePad is an application that converts your iPod Touch/iPhone to a remote pad controller, just imagine using your iPod Touch/iPhone to control a Power Point presentation, or maybe to playing-stopping a movie.

You´ll need a wireless network connection to connect your PC to your iPod Touch/iPhone and RemotePad Server installed in your PC (your can download it from here)

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So, how to use it? firstly, download RemotePad Server, then open the app in your iPod Touch/Iphone, after that execute the RemotePad Server and write the IP and Port shown in to your iPod. That´s all you need to know.

Rating: 8/10
Price: Free

Discover: use your iPod Touch/iPhone as a "memory stick"

This is a free utility that let you use your ipod or iphone as a memory stick. You can transfer your files from computer-iTouch, iTouch-computer or iTouch-iTouch. You only need a wi-fi network to transfer the files.

To use it, simply you have to put an address on your web browser, after that you can send and receive files and view them, if you want, without connection. You can view your office files, photos, movies, PDF and more.

The only inconvenient is that you can´t view your office 2007 files, but i think that they probably will fix that problem in further versions. beside that it is a great utility, and i recommend it.

Rating: 9/10
Price: Free