Looking for TVM formulas

[Dieter]

(04-02-2014 05:18 PM)Thomas Klemm Wrote:  You could use \(e^x-1=2 \cdot sinh(\frac{x}{2}) \cdot e^{\frac{x}{2}}\) instead.

Since we're at it: hyperbolics can also be used for ln1+x.

\(ln(1+x) = 2 \cdot artanh(\frac{x}{x+2})\)

Seems to work well if x is not too large so that the artanh-argument does not get too close to 1.

Dieter