Reciprocal may refer to:

• Multiplicative inverse, in mathematics, the number 1/x, which multiplied by x gives the product 1, also known as a reciprocal
• Reciprocal rule, a technique in calculus for calculating derivatives of reciprocal functions
• Reciprocal lattice, a basis for the dual space of covectors, in crystallography
• Reciprocal (grammar), a relationship between grammatical agents
• Reciprocal determinism, a theory in psychology
• Reciprocal altruism, a form of symbiotic relationship in evolutionary biology
• Reciprocal cross, a breeding experiment in genetics
• Hybrid (biology), in genetics, the result of reciprocal crossing, also known as a reciprocal hybrid

See also

• Reciprocity

In Mathematics, a multiplicative inverse for a number x, denoted by 1&frasl x or x &minus1 is a number which This is about a method in calculus For other uses of "reciprocal" see Reciprocal. In Crystallography, the reciprocal lattice of a Bravais lattice is the set of all vectors K such that e^{i\mathbf{K}\cdot\mathbf{R}}=1 A reciprocal is a linguistic structure that marks a particular kind of relationship between two noun phrases Reciprocal determinism is the theory set forth by psychologist Albert Bandura that a person's behavior both influences and is influenced by personal factors In Evolutionary biology and Evolutionary psychology, reciprocal altruism is a form of Altruism in which one organism provides a benefit to another without In Genetics, a reciprocal cross is a breeding experiment designed to test the role of parental sex on a given inheritance pattern In Biology, hybrid has two meanings The first meaning is the result of interbreeding between two animals or plants of different taxa.

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