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Goals and Symptoms
VJL V2.6 : :error with the ATAN, ACOS and ASIN functions
Causes and Fixes
The workaround is :
- for ATAN :
Replace ATAN(X) by ATAN (X* 180/Pi)
- for ASIN :
Replace ASIN(X) by ATAN((X / Sqr(-X * X + 1))*180/PI)
- for ACOS :
Replace ACOS(X) by ATAN((-X / Sqr(-X * X + 1))*180/PI) + 2 * ATAN(1*180/PI)
Then it will work correctly.
We decided to release this workaround (instead of a patch) because very few customers (at this day, only 1) seem to be concerned by this issue.