L'Hospital's rule
noun Mathematics.
the theorem that for the quotient of two functions satisfying certain conditions on a given closed interval, each having infinite limit or zero as limit at a given point, the limit of the quotient at the given point is equal to the limit of the quotient of the derivatives of each function.
Origin of L'Hospital's rule
named after G. F. A. L'Hospital
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020