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@ -29,7 +29,7 @@ ___1_|/._._._._._._._
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-2 | \
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-3 | _\|
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-4 | "" v
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-5 |
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```
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NOTE: while for normal (scalar) variables we use letters such as *x*, *y* and *z*, for vector variables we usually use letters *u*, *v* and *w* and also put a small arrow above them as:
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@ -70,7 +70,7 @@ Some of said **operations** with vectors include:
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- **addition** (vector + vector = vector): Just like with numbers we can add vectors, i.e. for example if there are two forces acting on an object and we represent them by vectors, we can get the total force as a vector we get by adding the individual vectors. Addition is pretty straightforward, we simply add each component of both vectors, e.g. *u + v = [7 + 2, 6 - 3.5] = [9,2.5]*. Geometrically addition can be seen as drawing one vector from the other vector's endpoint (note that the [order doesn't matter](commutativity.md), i.e. *u + v = v + u*):
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```
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```
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7 |
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6 | _,
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5 | __/|\u
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@ -82,7 +82,7 @@ ___1_|/_...--''____/____
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-2 | \ __/
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-3 | _\|/
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-4 | "" v
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```
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