d02uyc obtains the weights for Clenshaw–Curtis quadrature at Chebyshev points. This allows for fast approximations of integrals for functions specified on Chebyshev Gauss–Lobatto points on .
An internal error has occurred in this function. Check the function call and any array sizes. If the call is correct then please contact NAG for assistance.
See Section 7.5 in the Introduction to the NAG Library CL Interface for further information.
NE_NO_LICENCE
Your licence key may have expired or may not have been installed correctly.
See Section 8 in the Introduction to the NAG Library CL Interface for further information.
7Accuracy
The accuracy should be close to machine precision.
8Parallelism and Performance
Background information to multithreading can be found in the Multithreading documentation.
d02uyc is not threaded in any implementation.
9Further Comments
A real array of length is internally allocated.
10Example
This example approximates the integral using Clenshaw–Curtis weights and a -point Chebyshev Gauss–Lobatto grid on .