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## Main Question or Discussion Point

What I learned from a book, B-spline is constructed by knowing some control points.

However, below video showing that a B-spline is not constructed by a control point instead of fitpoints and tangent weight (handle).

Anyone know what is the name of the theory of it in a book and how to solve the equation?

However, below video showing that a B-spline is not constructed by a control point instead of fitpoints and tangent weight (handle).

Anyone know what is the name of the theory of it in a book and how to solve the equation?