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Nobody ever read the title
Ma; ppt
tht t' sri' S
iti' yolk
zero ) 533 ti at
tht t' sri' S
iti' yolk
zero ) 533 ti at
...
 
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#36

cruppgrounder (08/05/2012) [+] (6 replies)
The second term of the expression means the gradient of the gradient of the function Phi and last term of that expression means the derivative of the function Phi with respect to the variable t, but Phi only ever represents a variable in spherical coordinates, never a function itself, so basically its meaningless.