gtsam 4.1.1
gtsam

Pseudospectral parameterization for Chebyshev polynomials of the second kind. More...
Go to the source code of this file.
Classes  
class  gtsam::Chebyshev2 
Chebyshev Interpolation on Chebyshev points of the second kind Note that N here, the number of points, is one less than N from 'Approximation Theory and Approximation Practice by L. More...  
Namespaces  
namespace  gtsam 
Global functions in a separate testing namespace.  
Pseudospectral parameterization for Chebyshev polynomials of the second kind.
In a pseudospectral case, rather than the parameters acting as weights for the bases polynomials (as in Chebyshev2Basis), here the parameters are the values at a specific set of points in the interval, the "Chebyshev points". These values uniquely determine the polynomial that interpolates them at the Chebyshev points.
This is different from Chebyshev.h since it leverage ideas from pseudospectral optimization, i.e. we don't decompose into basis functions, rather estimate function parameters that enforce function nodes at Chebyshev points.
Please refer to Agrawal21icra for more details.