File talk:Vector addition subtraction.svg
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Hello, I would like to report a mistake in the image. In the right-hand side figure, the green vector is not the difference of vector a and vector b. It is -(a+b) or -a-b. I have made a correction of the figure, which can be found here : http://commons.wikimedia.org/wiki/File:Vector_addition_subtraction-NEW.png
