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Equation Of A Spline that passes 4 points


tomtomtom

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Hello all

 

I was hoping someone could shed some light on the following:-

 

I have a spline that goes through 4 points:-

 

x1,y1 - x2,y2 - x3,y3 - x4,y4

 

The spline is of degree 3 and is fixed at points x1, y1 and x4, y4.

 

What i need is the equation of the spline.

 

Is there anyway of calculating the equation that represents the spline?

 

Thanks

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