17. 5. 2018 v 9:25, Evaristo Quiroga via Therion <therion@speleo.sk>:

In this case is not a problem with my formula, is a serious magnetic anomaly (100 degrees difference)  and the program should to stop and to send a warning. 

Evaristo, 

Therion is a program to interprete your data, not to solve problems with your data.

It is your responsibility what the data you import into Therion. 

Martin S.