Difference between revisions of "Manuals/calci/COTH"
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| COTH(-45) | | COTH(-45) | ||
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Revision as of 06:03, 5 November 2013
COTH(z)
- where z is any real number
Description
- This function gives the hyperbolic cotangent of 'z',also it is called as circular function.
- COTH is the reciprocal of TANH function.
- COTH z=cosh z/sinh z.i.e. e^z+e^-z/e^z-e^-z or Icot iz.where 'I' is the imginary unit and i=sqrt(-1).
- Also relation between hyperbolic &trignometric function is
- cot(iz)=-icothz&coth(iz)=-icot z
Examples
COTH(z)
- z is any real number.
| COTH(z) | Value(Radian) |
| COTH(1) | 1.3130352854993312 |
| COTH(30) | 1 |
| COTH(-45) | -1 |