**deconv**Deconvolution of two vectors, or polynomial division.

**interp1**One dimensional interpolation.

**interp2**Two dimensional interpolation.

**isonormals**Compute normal vectors to an interpolated isosurface.

**mkpp**Piecewise polynomial struct construction.

**poly**Polynomial construction, either as a characteristic polynomial, or from its roots.2024

**polyder**Derivative of a polynomial.

**polyint**Integral of a polynomial.

**polyval**Evaluate a polynomial.

**ppval**Piecewise polynomial evaluation.

**roots**Compute the roots of a polynomial.

**spline**Interpolate (x,y) data with a cubic spline.

**unmkpp**Piecewise polynomial struct extraction.