Comparisons among the formula | forestrynepal

Newton’s formula is the most accurate.
It gives best volume not only of neiloid but gives of cylinder, paraboloid and cone also
As it requires area measurements of 3 cross section, difficult to apply
It is only used to calculate the error in volume calculation by other formula

Smalian’s formula overcomes the difficulty of measurement of mid diameter because this requires only measurement of end cross-sections
This formula overestimates the volume

Difference between Newton’s and Smalian’s formula

Difference between Huber’s and Newton’s formula

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