Vector shoot --- Introduction ---

This is a visual exercise on the linear combination of vectors (linear algebra): given a set of vectors v 1,...,v k and a set of scalars a 1,...,a k, the linear combination

u=a 1v 1+a 2v 2+...+a kv k

is a vector.

Therefore the exercise gives you the vectors v i∈ℝ 2 described graphically in a figure, as well as the concrete values of the coefficients a i. And you are asked to click on the point in the figure which you think is the end of the vector u (a shot).

At the end of a session composed of several shots, you will be given a score computed according to the average precision of your shots during the session.

Choose a level of difficulty : 1 , 2 , 3 , 4 , 5 , 6 .

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