roots

Return real roots of a spline within its domain.

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Declaration

 values = roots(spline)

Parameters

• spline BSpline instance

Returns

• values sorted real roots in the spline domain

Discussion

Use this to locate zero crossings of the spline over its support.

The implementation works interval by interval on the cached piecewise-polynomial coefficients, then keeps only real roots that lie in the corresponding interval.

  tZero = roots(spline);