As part of the SwissEph.Net project, I’ve got some user feedbacks about diffrences in the results of calculation between the .NET library and the original C DLL.
As I have not had feedback from users about used code and diferences found, I spend some time to create a project for testing and compare result values between the differents versions: https://github.com/ygrenier/SwissEphNet.TestsAndCompare.
Once the tests are done, I found there is a difference in floating point calculations in .NET, but not between C code and .NET, the difference is between 32bits and 64bits of the .NET code.