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My Pet had an accident :O Hyperbolic Definitions
sinh(x) = ( e x - e -x )/2
csch(x) = 1/sinh(x) = 2/( e x - e -x )
cosh(x) = ( e x + e -x )/2
sech(x) = 1/cosh(x) = 2/( e x + e -x )
tanh(x) = sinh(x)/cosh(x) = ( e x - e -x )/( e x + e -x )
coth(x) = 1/tanh(x) = ( e x + e -x)/( e x - e -x )
 Gourmets eaten
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