**deconv**

Deconvolution of two vectors, or polynomial division.**interp1**

One dimensional interpolation.**interp2**

Two dimensional interpolation.**isonormals**

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

Polynomial construction, either as a characteristic polynomial, or from its roots.2022**polyder**

Derivative of a polynomial.**polyint**

Integral of a polynomial.**polyval**

Evaluate a polynomial.**roots**

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

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