| Last change
 on this file since 2409 was             732, checked in by tbretz, 25 years ago | 
        
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Property                 svn:executable
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          | File size:
            523 bytes | 
      
      
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| 1 | #include "slalib.h" | 
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| 2 | #include "slamac.h" | 
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| 3 | float slaVdv ( float va[3], float vb[3] ) | 
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| 4 | /* | 
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| 5 | **  - - - - - - - | 
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| 6 | **   s l a V d v | 
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| 7 | **  - - - - - - - | 
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| 8 | ** | 
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| 9 | **  Scalar product of two 3-vectors. | 
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| 10 | ** | 
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| 11 | **  (single precision) | 
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| 12 | ** | 
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| 13 | **  Given: | 
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| 14 | **      va      float[3]     first vector | 
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| 15 | **      vb      float[3]     second vector | 
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| 16 | ** | 
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| 17 | **  The result is the scalar product va.vb  (single precision). | 
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| 18 | ** | 
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| 19 | **  Last revision:   15 July 1993 | 
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| 20 | ** | 
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| 21 | **  Copyright P.T.Wallace.  All rights reserved. | 
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| 22 | */ | 
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| 23 | { | 
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| 24 | return va[0] * vb[0] + va[1] * vb[1] + va[2] * vb[2]; | 
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| 25 | } | 
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