Category Archives: Python

Python Course Zero to Mastery Started at Udemy

Python ususally uses interpreter. Compiler are little bit different.

Interpret translates line by line.

Compiler takes all lines to machine code.

What is programming language? We give some instruction to translator. They tell the machine what to do. Translator can be interpreter or compiler.

Interpreter:

Compiler:

Python basics till numbers:

Double Slash in Python:


/ -> float division
//-> integer division

 

 

Programming Problem Solve with Python:

Problem: Only Positive Numbers

positiveFunc([-5,3,-1,101])

 

Pyhton as a new beginning

Same output but the code is in diffrent approach.

 

 

Loop Over Integer Colors

 

Python Course Started, Alhamdulillah

The Python Mega Course: Build 10 Real World Applications

Bismillahir Rahmanir Rahim. I am exploring this course for growing interest in my career:

Summary: Integers, Floats, Lists, Dictionaries, Tuples, dir, help

In this section you learned that:

  • Integers are for representing whole numbers:
  1. rank = 10
  2. eggs = 12
  3. people = 3
  • Floats represent continuous values:
  1. temperature = 10.2
  2. rainfall = 5.98
  3. elevation = 1031.88
  • Strings represent any text:
  1. message = “Welcome to our online shop!”
  2. name = “John”
  3. serial = “R001991981SW”
  • Lists represent arrays of values that may change during the course of the program:
  1. members = [“Sim Soony”, “Marry Roundknee”, “Jack Corridor”]
  2. pixel_values = [252, 251, 251, 253, 250, 248, 247]
  • Dictionaries represent pairs of keys and values:
  1. phone_numbers = {“John Smith”: “+37682929928”, “Marry Simpons”: “+423998200919”}
  2. volcano_elevations = {“Glacier Peak”: 3213.9, “Rainer”: 4392.1}
  • Keys of a dictionary can be extracted with:
  1. phone_numbers.keys()
  • Values of a dictionary can be extracted with:
  1. phone_numbers.values()
  • Tuples represent arrays of values that are not to be changed during the course of the program:
  1. vowels = (‘a’, ‘e’, ‘i’, ‘o’, ‘u’)
  2. one_digits = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
  • To find out what attributes a type has:
  1. dir(str)
  2. dir(list)
  3. dir(dict)
  • To find out what Python builtin functions there are:
  1. dir(__builtins__)
  • Documentation for a Python command can be found with:
  1. help(str)
  2. help(str.replace)
  3. help(dict.values)

Mission Machine Learning

Pagerank Algorithm Eigenvalue

 

Square Matrices

 

 

Geometric Interpretation

 

Eigenvalue:

https://www.khanacademy.org/math/linear-algebra/alternate-bases/eigen-everything/v/linear-algebra-introduction-to-eigenvalues-and-eigenvectors

 

For Loops in Python

 

 

 

 

 

Python String formatting

Playing With String in Function of Python

With First letter capital:

Converting string to int:

For Python 1 and 2

 

 

Python String Input Need To Clear From Internet

 

Python Function Calling

 

 

 

 

 

 

  • Check if a value is of a certain type with:
  1. isinstance(“abc”, str)
  2. isinstance([1, 2, 3], list)

or

  1. type(“abc”) == str
  2. type([1, 2, 3]) == lst

Python Function

 

Positive/Negative Indexes, Slicing of Tuples

 

Working with lists and append

Question:Append the first item of weekend to workdays

 

 

Dictionary in Python

Assign a dictionary variable day_temperatures.The dictionary should contain three keys ‘morning’,’noon’and evening and each key should containa tuple as value. each tuple should contain three floats.

 

 

Difference between tuple and list in python