Every day computer working stuff

Baby curve  theta = linspace(0,8*pi,10000); P=[cos(theta);sin(theta)]; polar(exp(sin(theta))+P(1,:),P(2,:)) Baby embryon curve  Organs curve theta = linspace(0,8*pi,10000); P=[cos(theta);sin(theta)]; polar(-sin(theta)+P(1,:),P(2,:)) Guess! Staircase curve            n=1:100000;            m=cumsum(1./n.^(1+sin(n*pi/5000)));            plot(n,m); Exotic Logistic Series TO BE STUDIED                   n=1:100000;                   m=cumsum(1./n.^(1+1./n));                   plot(n,m);

A fascinating number; just divide the perimeter of any circle by twice of its radius, you get then a strange number whose digits can evolve for ever in a random like sequence; it is 𝝅. That is, 𝝅 is 3 plus an irrational decimal part d whose expansion is limitless. Therefore, suppose the radius is half the unit, then the perimeter is about 3+d. That is the point!! the shape of the circle is quite trivial, it is gently regular, it is kinder than a square, I do understand the 3, but from where does the d part comes from? Is there a fractal structure hidden within the gentle circle, so 𝝅 is actually some kind of fractal dimension. Therefore, the circle shouldn't be that regular in fact. I am fascinated by    √ 2  off course, it comes from the square and Pythagora did well to find the relationship between the square's side and the virtual diagonal; yet I think from geometrical viewpoint, I can still handle and compute squares's perimeter without any knowledge about...

Useful command, ffmpeg -framerate 1/5 -i %03d.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4 where %03d means  images numbered over 3 digits

We give hereby the details of a typical deployment of react-native application in an android  emulator      

1. Generalities 2. React Typical Local Development Example 2.1 STEP 0 : react project template initialization 2.2 STEP 1 : react template local deployment 3. React/Ngrok Typical Webhooking  I give hereby the details of a typical use case of ngrok where the hook concerns a localhost site 3.1 Running the Local Server 3.2 Hooking  3.3 Testing the  Hook