[Tutor] Maths: getting degrees from radians (or am I wrong?)

Bernard Lebel 3dbernard at gmail.com
Wed Sep 21 00:05:31 CEST 2005


I have this little math problem. I have this formula from wich I get a
dot product between two vectors.

cos(ß) = A.B / |A|.|B| = -0.0634
So this would give me radians, right?

Then if I use

math.degrees( -0.0634 )

This gives me a value of -3.6325524211294193.

However I have a book in front of me who says I should get a value of
93.635 degrees. mmmmm

Btw, in the book, the equation is written

ß = cos-1(-0.0634) = 93.635, where -1 is actually an exponent. Maybe
I'm just interpreting this wrong?


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