Derivatives on HP 42S

[Thomas Klemm]

(08-21-2018 01:35 AM)Thomas Klemm Wrote:  The flatness of the function makes it hard to numerically find the stationary points.

Here's another example: \(f(x)=\sin(x+\cos(x))\)

This is the power series expansion for \(f\) about the point \(x=\frac{\pi}{2}\):

\(1 - \frac{1}{72} (x - \frac{\pi}{2})^6 + \frac{1}{720} (x - \frac{\pi}{2})^8 + O((x - \frac{\pi}{2})^{10})\)

You should start with the initial values 1 and 2.

Kind regards
Thomas