Math for Transforming 3D Geometry
<p>The positions of things in graphics are usually represented by vectors. The first number in a vector is called the x-coordinate and the second number is called the y-coordinate. Each number represents a dimension; a 3-dimensional vector has an additional coordinate called z.</p>
<p><img alt="" src="https://miro.medium.com/v2/resize:fit:700/1*oso3_4WSj3PruWgZRSGr9Q.png" style="height:118px; width:700px" /></p>
<p>Here are two different vectors, a and b. a’s x coordinate is 2 and its y coordinate is 3. Since these vectors have two numbers each, they represent positions in 2-dimensional space.</p>
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