Difference between revisions of "Manuals/calci/COSH"

Revision as of 01:10, 7 November 2013

COSH(z)

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