from pyscf import gto, scf

mol = gto.M(atom='H 0 0 0; H 0 0 1.0', basis='6-31g')
mf = scf.RHF(mol)

# Overlap matrix for H2
print(mol.intor('int1e_ovlp_cart'))
e2a0f5748c75707e4c3b6e0687ce704d210d7a77
<mask token>

<mask token>
print(mol.intor('int1e_ovlp_cart'))

<mask token>
mol = gto.M(atom='H 0 0 0; H 0 0 1.0', basis='6-31g')
mf = scf.RHF(mol)
print(mol.intor('int1e_ovlp_cart'))

from pyscf import gto, scf
mol = gto.M(atom='H 0 0 0; H 0 0 1.0', basis='6-31g')
mf = scf.RHF(mol)
print(mol.intor('int1e_ovlp_cart'))

from pyscf import gto, scf

mol = gto.M(atom='H 0 0 0; H 0 0 1.0', basis='6-31g')
mf = scf.RHF(mol)

# Overlap matrix for H2
print(mol.intor('int1e_ovlp_cart'))