ifilot / pyqint

Python package for evaluating integrals of Gaussian type orbitals in electronic structure calculations
https://pyqint.imc-tue.nl
GNU General Public License v3.0
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About analytic formula for the integrals #40

Closed fate1997 closed 2 months ago

fate1997 commented 2 months ago

Hi,

Thank you so much for your excellent work! I am new to quantum chemistry, and your codes help me a lot in understanding how to turn theory into practice.

When diving into your codes, I met some difficulties in understanding the integrals part. Is there any reference that includes the analytic formulas that you referred to?

ifilot commented 2 months ago

Thank you for the nice words. I am happy to read that the code is to your liking. If you are new to quantum chemistry, you might also appreciate the book that I wrote on the subject.

To answer your question, there a number of useful sources to mention:

Perhaps important to mention is that the implemention in PyQint is not the most efficient one. There exist more efficient schemes. If you delve into the topic, you will certainly encounter them.

fate1997 commented 2 months ago

Thank you so much for these nice resources! Your book looks so nice!!!