I'm trying to adapt an Excel spreadsheet in POV. I've got a strange problem.
Cell E19 = 280.8191102;
Cell E20 = 23.43825611;
Cell E21 = DEGRES ( ATAN2 ( COS(RADIANS(E19));
COS(RADIANS(E20))*SIN(RADIANS(E19) ) ) )
E21 = -78.23396726
#declare E19 = 280.8191102;
#declare E20 = 23.43825611;
#declare RESULT =degrees(atan2(cos(radians(E19)),
RESULT = 168.233967
No obvious relationship between this -78.2 and +168.2
How to explain this difference ?
Especially since the correct value is -78.2 or 281.7 !
(Note that the numbers after the decimal point are exactly the same.)
Are the origins of angles and rotation direction in Excel and POV
Kurtz le pirate
Compagnie de la Banquise
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