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Vector Gem Collector

Age 14 to 18
Challenge Level
To add a new vector, click on the green + sign.
Then click on the vector to edit it.
You can click on the + and - signs to increase or decrease the two components of the vector - see the screenshot below:

Once you have chosen all your vectors, click on "Close" and then click "Get a score" to find out how many gems you have collected!
Don't forget that your final vector needs to take you back home.