Clemens C. J. Roothaan

Clemens C. J. Roothaan is a noted figure in the field of chemistry, particularly known for his work in quantum chemistry and computational methods. He is best recognized for the Roothaan method, which is an important development in the area of Hartree-Fock theory. This method involves the use of matrix techniques to solve the Hartree-Fock equations, enabling more efficient calculations of the electronic structure of atoms and molecules.