It's annoying for me to share the spreadsheet, but I'm basically implementing the math in: https://lhc-div-mms.web.cern.ch/tests/MAG/FiDeL/Documentation/lhc-m-

It's annoying for me to share the spreadsheet, but I'm basically implementing the math in: https://lhc-div-mms.web.cern.ch/tests/MAG/FiDeL/Documentation/lhc-m-es-0001-30-00.pdf https://lhc-div-mms.web.cern.ch/tests/MAG/FiDeL/Documentatio... To do with calculating multipole coefficients from measured data and then doing coordinate transformations on them.