Secant

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The secant function is defined by $$\sec(z)=\dfrac{1}{\cos(z)}.$$

Properties

Derivative of secant
Relationship between secant, Gudermannian, and cosh
Relationship between cosh, inverse Gudermannian, and sec

See Also

Arcsec
Sech
Arcsech

References

<center>Trigonometric functions
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