Ritz method
The Ritz method is a variational method named after Walter Ritz, in which the ansatz function is a linear combination of N known basis functions, parametrized by unknown coefficients:
The Ritz method is a variational method named after Walter Ritz, in which the ansatz function is a linear combination of N known basis functions, parametrized by unknown coefficients:
![{\displaystyle \Phi =\sum _{i=1}^{N}c_{i}\Psi _{i}.[[Category:QuantumChemistry]]}](/media/api/rest_v1/media/math/render/svg/9be287fa9c5ccd858e8028c64d87ede04614a20a)