Mathematically, the volume of a body may be defined by means of integral calculus.

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The amount of space occupied by an object or system is called the volume of the object or system.

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The volume of an object is equal to its mass divided by its average density (the term "average density" is used for an object that does not have uniform density).

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A one-dimensional object, such as a line in mathematics, or a two-dimensional object, such as a square, is assigned zero volume in three-dimensional space.

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The act also provided that "the defendant has the burden of proving the defense of insanity by clear and convincing evidence."

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The volume of a solid object is given a numerical value that quantifies the amount of three-dimensional space it occupies.

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