| def square_root (n,d) #number and error difference | |
| guess = n / 2.0 #half the guess since square root cant be more than half | |
| while (((guess *guess) - n).abs > d) | |
| guess = refine(guess, n) | |
| end | |
| puts guess | |
| end | |
| def refine (guess, n) | |
| guess = (guess + (n / guess)) / 2.0 |
| def square_root (n) | |
| guess = n / 2.0 | |
| while (((guess *guess) - n).abs > 0.000000001) | |
| guess = refine(guess, n) | |
| end | |
| return guess | |
| end | |
| def refine (guess, n) |
| def max_min(arr): | |
| mini=arr[0] | |
| maxi=arr[0] | |
| for x in arr: | |
| if maxi<x: | |
| maxi=x | |
| if mini>x: | |
| mini=x | |
| max_and_min=[maxi,mini] |
| def wierd_sort (arr): #defining the length of the array | |
| wierd =[] #Empty arry to store sorted arr | |
| myarr = arr[:] #makes a copy of the array | |
| myarr = sorted(myarr) #sorts array | |
| i = 0 | |
| while i < len(myarr): #goes through the lenngth of the array | |
| if len(myarr) > 1: | |
| wierd.append(myarr[0]) #appends the first digit into the new arr | |
| wierd.append(myarr[-1]) #appends the last digit into the new arr | |
| myarr.remove(myarr[0]) #removes the first digit from a copy of the initial array |
| arra = [1,2,3] | |
| def roots_of_eqn(coeffs) | |
| a = coeffs[0] | |
| b = coeffs[1] | |
| c = coeffs[2] | |
| d = (b * b) - (4 * a * c) | |
| if d <= 0 |
| def sort_playlist(arr): | |
| arr = arr[:] | |
| for num_pass in range(len(arr)-1,0,-1): | |
| for i in range(num_pass): | |
| if arr[i][1] > arr[i+1][1]: | |
| arr[i], arr[i+1] = arr[i+1],arr[i] | |
| return arr | |
| def select_songs(playlist,time): | |
| sorted_playlist = sort_playlist |
| #checking python version | |
| python3 --version # should return 'Python 3.4.0' | |
| sudo apt-get install python3-pip | |
| sudo pip3 install pymongo #installing pymongo |
| Verifying my Blockstack ID is secured with the address 1Fi57n2HTNgRerKqEm1KD9bYSSnJZkt4wF https://explorer.blockstack.org/address/1Fi57n2HTNgRerKqEm1KD9bYSSnJZkt4wF |
The list by @goodfellow_ian, as per Twitter discussion with @timnitGebru: https://twitter.com/timnitGebru/status/968242968007200769
