Assignment #1

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Assignment #2

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I don’t understand the sequence of button in task#1, so lots of code in Ass.#2 is copied from David Barton’s Blog, anyway , it works now.

Assignment #3

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I don’t implement drawGraph.

Assignment #4

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Assignment #5

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Some small problems exit in iPhone Version, I don’t have enough time to fix them.

Assignment #6

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All files are shared on Dropbox. If some link is down, plz contact me via email: [email protected]