cumsum

Return the indefinite integral along one tensor dimension.

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Declaration

 intspline = cumsum(self,dim)

Parameters

• self TensorSpline instance
• dim tensor dimension to integrate along

Returns

• intspline TensorSpline representing the integral

Discussion

The integral is zero at the lower bound of the selected dimension while holding all other coordinates fixed.

This applies the one-dimensional B-spline integration formula along the chosen tensor dimension and leaves the other dimensions unchanged.

  F = cumsum(spline);
  Fy = cumsum(spline, 2);