sproot(tck, mest=10)

Given the knots (>=8) and coefficients of a cubic B-spline return the roots of the spline.

Notes

Manipulating the tck-tuples directly is not recommended. In new code, prefer using the BSpline objects.

Parameters

tck : tuple or a BSpline object

If a tuple, then it should be a sequence of length 3, containing the vector of knots, the B-spline coefficients, and the degree of the spline. The number of knots must be >= 8, and the degree must be 3. The knots must be a montonically increasing sequence.

mest : int, optional

An estimate of the number of zeros (Default is 10).

Returns

zeros : ndarray

An array giving the roots of the spline.

Find the roots of a cubic B-spline.

See Also

BSpline

bisplev

bisplrep

spalde

splev

splint

splprep

splrep

Examples

Examples are given in the tutorial <tutorial-interpolate_splXXX> .

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

scipy.interpolate._fitpack_py.splrep scipy.interpolate._fitpack_py.splder scipy.interpolate._fitpack_py.splev scipy.interpolate._fitpack_py.splint scipy.interpolate._fitpack_impl.splder

Local connectivity graph

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SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

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