Blogs - Page 64 Of 116

Create a vector with values ranging from 1 to 20 using NumPy.

In this python numpy program, we will create a vector with values ranging from 1 to 20 using NumPy.

Steps to solve the program

Import the numpy library as np.
Create a vector with values ranging from 1 to 20 using np.arange().
Print the output.

				
					import numpy as np
x = np.arange(1,21)

print("Array: ",x)

Output :

				
					Array:  [ 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20]

generate an array of 5 random numbers from a standard normal distribution.

print all the values from the array except 20 using NumPy.

generate an array of 5 random numbers from a standard normal distribution using NumPy.

In this python numpy program, we will generate an array of 5 random numbers from a standard normal distribution using NumPy.

Steps to solve the program

Import the numpy library as np.
Generate an array of 5 random numbers from a standard normal distribution using np.random.normal(size=5).
Print the output.

				
					import numpy as np
x = np.random.normal(size=5)
print(x)

Output :

				
					[ 0.07450327 -1.26415493  0.61604056  0.61595139 -1.07081685]

generate random numbers between 1-2.

create a vector with values ranging from 1 to 20.

Generate random numbers between 1-2 using NumPy.

In this python numpy program, we will generate random numbers between 1-2 using NumPy.

Steps to solve the program

From the numpy library import random.
Generate random numbers between 1-2 using random.rand().
Use for loop with the range function to generate 5 numbers.
Print the output.

				
					from numpy import random
for i in range(5):
    rand_num = random.rand()
    print(rand_num)

Output :

				
					0.9108111865486636
0.6770944961821627
0.4528420505050911
0.7668031795361783
0.4633483035604695

create a 3×3 identify matrix.

generate an array of 5 random numbers from a standard normal distribution.

Python NumPy program to create a 3×3 identify matrix

In this python numpy program, we will create a 3×3 identify matrix

Steps to solve the program

Import the numpy library as np.
Create a 3×3 identity matrix using np.identity().
Print the output.

				
					import numpy as np
x = np.identity(3)

print(x)

Output :

				
					[[1. 0. 0.]
 [0. 1. 0.]
 [0. 0. 1.]]

create a 3×3 matrix.

generate random numbers between 1-2.

Python NumPy program to create a 3×3 matrix

In this python numpy program, we will create a 3×3 matrix using NumPy.

Steps to solve the program

Import the numpy library as np.
Create 3×3 matrix using np.array().
Print the output.

				
					import numpy as np
x = np.array([[1,2,3],[4,5,6],[7,8,9]])

print(x)

Output :

				
					[[1 2 3]
 [4 5 6]
 [7 8 9]]

create an array of integers between 1-100 by the difference of 6 between them.

create a 3×3 identify matrix.

Create an array of integers by the difference of 6 between them using NumPy.

In this python numpy program, we will create an array of integers by the difference of 6 between them using NumPy.

Steps to solve the program

Import the numpy library as np.
Create an array of integers between 1-100 by the difference of 6 between them using np.arange().
Print the output.

				
					import numpy as np
x = np.arange(1,101,6)

print("Array: ",x)

Output :

				
					Array:  [ 1  7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97]

create an array of odd integers between 1-20.

create a 3×3 matrix.

Create an array of odd integers between 1-20 using NumPy.

In this python numpy program, we will create an array of odd integers between 1-20 using NumPy.

Steps to solve the program

Import the numpy library as np.
Create an array of odd integers using np.arange().
Print the output.

				
					import numpy as np
x = np.arange(1,21,2)

print("Array of odd numbers: ",x)

Output :

				
					Array of odd numbers:  [ 1  3  5  7  9 11 13 15 17 19]

create an array of even integers between 1-20.

create an array of integers between 1-100 by the difference of 6 between them.

Create an array of even integers between 1-20 using NumPy.

In this python numpy program, we will create an array of even integers between 1-20 using NumPy.

Steps to solve the program

Import the numpy library as np.
Create an array of even numbers using np.arange().
Print the output.

				
					import numpy as np
x = np.arange(2,21,2)

print("Array of even numbers: ",x)

Output :

				
					Array of even numbers:  [ 2  4  6  8 10 12 14 16 18 20]

create an array of integers between 1-20.

create an array of odd integers between 1-20.

Create an array of integers between 1-20 using NumPy.

In this python numpy program, we will create an array of integers between 1-20 using NumPy.

Steps to solve the program

Import the numpy library as np.
Create an array of integers using np.arange().
Print the output.

				
					import numpy as np
x = np.arange(1,21)

print("Array: ",x)

Output :

				
					Array:  [ 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20]

create an array of 3 ones.

create an array of even integers between 1-20.

Program to create an array of 3 ones using NumPy.

In this python numpy program, we will create an array of 3 ones using NumPy.

Steps to solve the program

Import the numpy library as np.
Create an array of 3 ones using np.ones() and give datatype as int and number of ones i.e. 3 to the above function.
Print the output.

				
					import numpy as np
x = np.ones(3, dtype = int)

print(x)

Output :

				
					[1 1 1]

determine the size of the memory occupied by the above array.

create an array of integers between 1-20.