Content location → DerivativesEvidenceCandidate from reviewed en material v1: The derivative at a fixed point is the finite limit of its difference quotient, when that limit exists. In the limit, h is nonzero and approaches 0.
Content location → DerivativesEvidenceCandidate from reviewed zh material v1: 固定点的导数是差商存在且有限的极限；取极限时h非零并趋于0。
Explanation → DerivativesEvidenceCandidate from reviewed en material v1: The derivative at a fixed point is the finite limit of its difference quotient, when that limit exists. In the limit, h is nonzero and approaches 0.
Explanation → DerivativesEvidenceCandidate from reviewed zh material v1: 固定点的导数是差商存在且有限的极限；取极限时h非零并趋于0。
Content location → The derivative of sine from the limit definitionEvidenceCandidate from reviewed en material v1: The derivative at a fixed point is the finite limit of its difference quotient, when that limit exists. In the limit, h is nonzero and approaches 0.
Explanation → DerivativesEvidenceCandidate from reviewed en material v1: The derivative at a fixed point is the finite limit of its difference quotient, when that limit exists. In the limit, h is nonzero and approaches 0.
math