Describes the cause and action for error messages.
Error Message(English)：
trendline equation not correct
Linear trendline equation incorrect in Excel - Super User
https://superuser.com/questions/836038/linear-trendline-equation-incorrect-in-excel
microsoft excel - How to find trendline without ...
https://superuser.com/questions/920278/how-to-find-trendline-without-graphing
charts - Excel trendline accuracy
https://superuser.com/questions/194011/excel-trendline-accuracy
Excel: filling a table based on trendline equation ...
https://superuser.com/questions/57599/excel-filling-a-table-based-on-trendline-equation-without-crea・・・
Linear trendline equation incorrect in Excel - Super User
https://superuser.com/a/836339
Excel trendline types, equations and formulas - Ablebits.com
https://www.ablebits.com/office-addins-blog/2019/01/16/excel-trendline-types-equations-formulas/
Trendline Fitting Errors - Peltier Tech Blog
https://peltiertech.com/trendline-fitting-errors/
Why do trendline equations in Excel differ from the trendlines ...
https://www.quora.com/Why-do-trendline-equations-in-Excel-differ-from-the-trendlines-they-represent
Linear trendline:wrong equation | PC Review
https://www.pcreview.co.uk/threads/linear-trendline-wrong-equation.2522387/