Why is divergence a measure of “outwardness”?











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Why is divergence a measure of "outwardness"?



Since it's a dot product of gradient and a function. However, the gradient is measure of change. What makes the change "outward"?






divergence







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    up vote
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    favorite












    Why is divergence a measure of "outwardness"?



    Since it's a dot product of gradient and a function. However, the gradient is measure of change. What makes the change "outward"?






    divergence







    share|cite|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Why is divergence a measure of "outwardness"?



      Since it's a dot product of gradient and a function. However, the gradient is measure of change. What makes the change "outward"?






      divergence







      share|cite|improve this question













      Why is divergence a measure of "outwardness"?



      Since it's a dot product of gradient and a function. However, the gradient is measure of change. What makes the change "outward"?






      divergence




      divergence






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










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