Document ridgelet_functions
Make xy aspect ratio equal in density_plot
Add example script
Add pause statements to example script
Add copyright to DiagonalOperator.m
Remove isscalar test from DiagonalOperator.mtimes
Add copyright to example.m
Implement ScalarMultiplication operator
Implement FourierOperatorAdaptorRc
Implement ridgelet dot product and norm
Implement ridgelet_convergence
Implement ridgelet_convergence_driver