24 Oct
2007
24 Oct
'07
3:50 p.m.
On 10/24/07, Henry Baker <hbaker1@pipeline.com> wrote:
sinh(x*2^k) = ?? sinh(x+y) =
These two are exactly the same as in the regular sine case, e.g. sinh(2x) = 2 sinh(x) cosh(x) sinh(x+y) = sinh(x) cosh(y) + sinh(y) cosh(x) and so on.
asinh(x*2^k) = ?? asinh(x+y) = ??
I don't know. Either use the ln formulation of these or just use the fact that asinh(x) = i * asin(-ix) to change your favorite asin formulas into asinh formulas. I don't have any favorite asin formulas to use to start with, though. --Joshua Zucker