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Laboratory Project: Bezier Curves Part 2
In this video I go over Part 2 of the Laboratory Project: Bezier Curves. In this part I look at Question 2 of the project, which asks us to prove that the tangent line at the first control point, from the graph produced in Part 1, extends through to the second control point. Similarly I prove that this is the case for the tangent line at the 4th control point, which passes through to the 3rd control point. To prove this I show that we need to first calculate the derivative dy/dx by using it’s parametric form, i.e. (dy/dt)/(dx/dt), and then showing that it is equal to the slope of the line connecting the two control points. The good thing when calculating the derivative is that the Bezier curves are defined by identical x and y parametric equations, albeit the x/y’s are interchanged, so cuts the effort in calculating dy/dx by half. This is a very interesting video on the nature of Bezier curves, cubic Bezier curves to be exact, so make sure to watch this video, and stay tuned for later parts!
Download the notes in my video: https://1drv.ms/b/s!As32ynv0LoaIhucAFpvC1Wz3pa2I1g
View Video Notes on Steemit: https://steemit.com/mathematics/@mes/laboratory-project-bezier-curves-part-2
Related Videos:
Laboratory Project: Bezier Curves Part 1: https://youtu.be/S7aApca_B04
Parametric Calculus: Surface Area Part 1: https://youtu.be/4bMEIf6WD8M
Parametric Calculus: Arc Length Part 1: https://youtu.be/AWvJDK-m6wQ
Parametric Calculus: Areas: https://youtu.be/XdplYV61xlM
Parametric Calculus: Tangents: https://youtu.be/deQwD2o0Sas
Parametric Equations and Curves: https://youtu.be/Kd3XF4LZoFE .
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