Torsional Angle #226
Description
Feature ✅
Description
You are given four points A,B,C and D in a 3-dimensional Cartesian coordinate system. You are required to print the angle between the plane made by the points A,B,C and B,C,D in degrees(not radians). Let the angle be phi.
cos(phi) = (X.Y)/ |X||Y| where X = AB x BC and Y = BC x CD
Here, X.Y means the dot product of X and Y, AB x BC means the cross product of vectors AB and BC. Also, AB = B - A
Example
Input:
0 4 5
1 7 6
0 5 9
1 7 2
Output:
8.19
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