Syntax
cosh(number)
Description
The cosh() function returns the hyperbolic cosine of the number given.
Example
println("Test cosh(x) = 0.5 * (exp(x) + exp(-x))")
println("over the interval from -5 to 5\n")
println(" x cosh(x) 0.5 * (exp(x) + exp(-x))")
println("---------- ---------- ------------------------")
i=-5
while (i <= 5) {
coshdef = 0.5 * (exp(float(i)) + exp(float(-i)))
printf("%+10.6f %+10.6f %+10.6f\n",float(i),cosh(float(i)),coshdef)
i++
}