public static Matrix3d RotationArbitraryAxis(Vector3d axis, double radian)
{
Vector3d vector3d = axis.Normalize();
double num = Math.Cos(radian);
double double_ = Math.Sin(radian);
Matrix3d matrix3d_ = new Matrix3d(num);
Matrix3d matrix3d_2 = Matrix3d.smethod_2(Vector3d.TensorProduct(vector3d, vector3d), 1.0 - num);
Matrix3d matrix3d_3 = Matrix3d.smethod_2(Matrix3d.CrossProductMatrix3d(vector3d), double_);
return(Matrix3d.smethod_0(Matrix3d.smethod_0(matrix3d_, matrix3d_2), matrix3d_3));
}
