date 24.02.21 Section I- 3 0.9 *sin(cos(k*x)) * exp(x) ^i , k=1:30 then 30:1. Video 2min.
date 01.02 /2021 Section I-3 and I- 6 log -functions – work in progress. Section I-5-3 Cycles two more examples.
Date 20.1.21 : section I- 5- 6 log functions, – visualisation of the difference between z*log(z) and log(z^z) for complex numbers z in contrary to real numbers r , here r*log(r) = log(r^r) .
Date 13.04.2020 : Special functions – zeta- and gamma function , – work in progress. July 2020 derivative of gamma function , digamma-function and 2nd and 3rd derivative of the complex gamma function is presented.