rotate back to zero degree (start position) then don't rotate, then rotate to -80 degree, then back to zero degree (start position) and stay there.
I hope the you can help me.
Thank you.
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by its own tangent vector on the curve... and this happens to the last item. Here's the algorithm:
B0 ----> B1
B1 ----> B2
B2 ----> B3
B3 ----> B4
...
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