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# BezierCurve:getDerivative

Available since LÖVE 0.9.0
This function is not supported in earlier versions.

Get the derivative of the Bézier curve.

This function can be used to rotate sprites moving along a curve in the direction of the movement and compute the direction perpendicular to the curve at some parameter t.

## Function

### Synopsis

derivative = BezierCurve:getDerivative()

### Arguments

None.

### Returns

`BezierCurve derivative`
  The derivative curve.

## See Also

- BezierCurve
- love.math

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Retrieved from "https://www.love2d.org/wiki/BezierCurve:getDerivative"
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