(2 ) The " Herbrand universe of a closed formula in Skolem normal form"
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If the number of representations is finite then a further question is to give a closed formula for this number.
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There is indeed no closed formula like the one for sums . contribs 13 : 45, 13 January 2006 ( UTC)
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:I've got a recursive solution, but I'm not sure how ( or if it's possible ) to get a closed formula.
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The reverse conversion is harder : given X-Y-Z we can immediately get longitude, but no closed formula for latitude and height exists.
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Weyl's formula is a closed formula for the ?, in terms of other objects constructed from " G " and its Lie algebra.
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In Sunday's Italian Grand Prix, Schumacher held off BMW-Williams driver Juan Pablo Montoya and won one of the closest Formula One races in years.
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In sharp contrast, there is no elementary closed formula for the perimeter length of an ellipse ( excepting the special case of a circle ).
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The simplest such functions are " closed formulas ", which can be expressed as a composition of elementary functions such as factorials, powers, and so on.
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A major mathematical difficulty in symbolic integration is that in many cases, a closed formula for the antiderivative of a rather simple-looking function does not exist.
