Difference between revisions of "Manuals/calci/SECH"
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==Description== | ==Description== | ||
| − | This function gives the hyperbolic secant of 'z',also it is called as circular function. | + | * This function gives the hyperbolic secant of 'z',also it is called as circular function. |
| − | sec(iz)=sechz&sec(iz)=sec z | + | * SECH is the reciprocal of COSH function.SECH z=(cosh z)^-1.i.e. 2/e^z+e^-z or SEC iz.where 'I' is the imginary unit and i=sqrt(-1). |
| + | * Also relation between hyperbolic &trignometric function is | ||
| + | * sec(iz)=sechz&sec(iz)=sec z | ||
== Examples == | == Examples == | ||
Revision as of 05:48, 5 November 2013
SECH(z)
- where z is any real number
Description
- This function gives the hyperbolic secant of 'z',also it is called as circular function.
- SECH is the reciprocal of COSH function.SECH z=(cosh z)^-1.i.e. 2/e^z+e^-z or SEC iz.where 'I' is the imginary unit and i=sqrt(-1).
- Also relation between hyperbolic &trignometric function is
- sec(iz)=sechz&sec(iz)=sec z
Examples
SECH(z)
- z is any real number.
| SECH(z) | Value(Radian) |
| SECH(0) | 1 |
| SECH(10) | 0.00009079985933781728 |
| SECH(7) | SECH(7)=0.001823762414 |