Difference between revisions of "Manuals/calci/COSH"

Revision as of 06:17, 5 November 2013

COSH(z)

This function gives the hyperbolic Cos of 'z'.
Also it is called as Circular function.
Here $COSH={\frac {e^{z}-e^{-z}}{2}}$ or $-iCOS(iz)$ , where $i$ is the imginary unit and $i={\sqrt {-1}}$
Also relation between Hyperbolic & Trigonometric function is $Cos(iz)=iCos(hz)$ & $Cosh(iz)=iCos(z)$
COSH(-z)=COSH(z)

COSH(z)

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 *This function gives the hyperbolic Cos of 'z'.
 *Also it is called as Circular function.
-* Here <math>COSH=\frac{e^z-e^{-z}}{2}</math> or <math>-iSIN(iz)</math>, where <math>i</math> is the imginary unit and <math>i=\sqrt{-1}</math>
+* Here <math>COSH=\frac{e^z-e^{-z}}{2}</math> or <math>-iCOS(iz)</math>, where <math>i</math> is the imginary unit and <math>i=\sqrt{-1}</math>
 *Also relation between Hyperbolic & Trigonometric function is <math>Cos(iz)=iCos(hz)</math> & <math>Cosh(iz)= iCos(z)</math>
 *COSH(-z)=COSH(z)