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The cosh Function

The y = cosh x function is defined as
cosh x  =  e x  +  e x
2
The other hyperbolic functions are
sinh x  =  e x  –  e x
2
     
tanh  =  e x  –  e x
e x  +  e x
What they look like you can find out for yourself by activating the JAVA module below
Here a few examples as how to write equations
cos(x) exp(x)
cos(x*2)   exp(1/x)
cos(x/40)   x^2
cosh(x)   1/x^2
cosh(40*x)   1/(x^3+10)
    1/(exp(x-20)+1)
 
 

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go to 2.3.3. Shockley-Read-Hall Recombination

go to Peierls Instability

© H. Föll (Semiconductor - Script)