Https://mathoverflow.net/questions/486865/how-to-contact-sage-50-quantum-support-%ef%bc%b3%ef%bd%81%ef%bd%87%ef%bd%85-quantum-support https://mathoverflow.net/questions/486865/how-to-contact-sage-50-quantum-support-%ef%bc%b3%ef%bd%81%ef%bd%87%ef%bd%85-quantum-support