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 double dot_product ( SS_XYZ *xyz1, SS_XYZ *xyz2 ) 
 SS_XYZ *xyz1; // a pointer to a 3D point SS_XYZ *xyz2; // a pointer to a 3D point 
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| Synopsis | #include "silver.h" 
 The dot_product function computes the dot product of the two points at xyz1 and xyz2 . The dot product is computed by the following calculation: 
 
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| Parameters | xyz1 and xyz2 are pointers to a SS_XYZ structures. 
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| Return Value | The result of the specified computation is returned. 
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| See Also | 
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