Given two vectorsand, we can build other vectors combining products by scalar with sums and subtractions of the following form:
3+ 2
- 2+
- 4- 1.5
2- 3
We will say that we have formed linear combinations of the two vector and. In the figure of the right side you have these four linear combinations obtained by application of the parallelogram law.
That is to say, a linear combination of two vectorandIt is any other vectorobtained so: = m+ n, being scalar m and n.
|