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Python Articles
Page 844 of 855
How to Plot Complex Numbers in Python?
You can plot complex numbers on a polar plot. If you have an array of complex numbers, you can plot it using:import matplotlib.pyplot as plt import numpy as np cnums = np.arange(5) + 1j * np.arange(6,11) X = [x.real for x in cnums] Y = [x.imag for x in cnums] plt.scatter(X,Y, color='red') plt.show()This will plot a graph of the numbers in a complex plane.
Read MoreHow can we generate Strong numbers in Python?
To print Strong Numbers, let's first look at the definition of it. It is a number that is the sum of factorials of its own digits. For example, 145 is a Strong number. First, create a function to calculate factorial:def fact(num): def factorial(n): num = 1 while n >= 1: num = num * n n = n - 1 return numYou can print these numbers by running the following code:def factorial(n): num ...
Read MoreHow to Calculate the Area of a Triangle using Python?
Calculating the area of a triangle is a formula that you can easily implement in python. If you have the base and height of the triangle, you can use the following code to get the area of the triangle,def get_area(base, height): return 0.5 * base * height print(get_area(10, 15))This will give the output:75If you have the sides of the triangle, you can use herons formula to get the area. For example,def get_area(a, b, c): s = (a+b+c)/2 return (s*(s-a)*(s-b)*(s-c)) ** 0.5 print(get_area(10, 15, 10))This will give the output:49.607837082461074
Read MoreHow to use multiple for and while loops together in Python?
You can create nested loops in python fairly easily. You can even nest a for loop inside a while loop or the other way around. For example,for i in range(5): j = i while j != 0: print(j, end=', ') j -= 1 print("")This will give the output1, 2, 1, 3, 2, 1, 4, 3, 2, 1,You can take this nesting to as many levels as you like.
Read MoreCan we change Python for loop range (higher limit) at runtime?
No, You can't modify a range once it is created. Instead what you can do is use a while loop instead. For example, if you have some code like:for i in range(lower_limit, higher_limit, step_size):# some code if i == 10: higher_limit = higher_limit + 5You can change it to:i = lower_limit while i < higher_limit: # some code if i == 10: higher_limit = higher_limit + 5 i += step_size
Read MoreHow to create a triangle using Python for loop?
There are multiple variations of generating triangle using numbers in Python. Let's look at the 2 simplest forms:for i in range(5): for j in range(i + 1): print(j + 1, end="") print("")This will give the output:1 12 123 1234 12345You can also print numbers continuously using:start = 1 for i in range(5): for j in range(i + 1): print(start, end=" ") start += 1 print("")This will give the output:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15You can also print these numbers in reverse using:start = 15 for i in range(5): for j in range(i + 1): print(start, end=" ") start -= 1 print("")This will give the output:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Read MoreHow do I run two python loops concurrently?
You will need to use a multiprocessing library. You will need to spawn a new process and provide the code to it as an argument. For example,from multiprocessing import Processdef loop_a(): for i in range(5): print("a") def loop_b(): for i in range(5): print("b") Process(target=loop_a).start() Process(target=loop_b).start()This might process different outputs at different times. This is because we don't know which print will be executed when.
Read MoreHow to write inline if statement for print in Python?
Python provides two ways to write inline if statements. These are:1. if condition: statement2. s1 if condition else s2Note that second type of if cannot be used without an else. Now you can use these inline in a print statement as well. For example,a = True if a: print("Hello")This will give the output:Helloa = False print("True" if a else "False")This will give the output:False
Read MoreWhere to put comments in an if...elif..else construct?
You can put comments anywhere in an if...elif...else statement, ie before each of these blocks or within each of these blocks. Note that you cannot put multiline comments before elif and else blocks though, as these comments are actually strings which imply a break in the whole construct. For example,# If check if True: # Another Comment style print("If block") # Else if statement elif False: # Another Comment style print("elif block") # Else else: # Another Comment style print("Else block")This will give the output:If block
Read MoreHow to comment each condition in a multi-line if statement in Python?
You can do this directly if you are surrounding your multiline if statements conditions in a parenthesis. For example,if (cond1 == 'val1' and cond2 == 'val2' and # Some comment cond3 == 'val3' and # Some comment cond4 == 'val4'):However, this is not possible if you try to do this without a parenthesis. For example, the following code will give an error:if cond1 == 'val1' and \ cond2 == 'val2' and \ # Some comment cond3 == 'val3' and \ # Some comment cond4 == 'val4':
Read More