Problem

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Other Ways to Create Arrays and Matrices

Theory Click to read/hide

Ways to create arrays and matrices

Other useful ways to create arrays and matrices.

Example
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 import numpy as np # One-dimensional array of zeros print(np.zero(5)) #[0. 0.0.0.0.] # Two-dimensional array of zeros print(np.zeros((2, 3))) # [[0. 0.0.] #[0. 0.0.]] # 3D array of units print(np.ones((2,3,4))) # [[[1. 1. 1. 1.] # [1. 1. 1. 1.] # [1. 1. 1. 1.]] # # [[1. 1. 1. 1.] # [1. 1. 1. 1.] # [1. 1. 1. 1.]]] # Array of zeros with type indication print(np.zeros(5, dtype=np.int)) # [0 0 0 0 0] # An array based on a list of lists print(np.array([[1,2.0],[0,0],(1,3.)])) # [[1. 2.] #[0. 0.] # [1. 3.]] # An array filled with elements of an arithmetic progression starting from 0 print(np.arange(10)) # [0 1 2 3 4 5 6 7 8 9] # Arithmetic progression with type indication print(np.arange(2, 10, dtype=np.float)) # [2. 3. 4. 5. 6. 7. 8. 9.] # Arithmetic progression with non-integer difference print(np.arange(2, 3, 0.1)) # [2. 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9] # Arithmetic progression with a given number of terms print(np.linspace(1., 4., 6)) # [1. 1.6 2.2 2.8 3.4 4. ]

Problem

1. Read from the keyboard the number n.
2. In the variable V NumPy , create a vector containing n zeros of type int.

time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

Teacher commentary

Insert the missing code snippets
Python
Write the program below 
import numpy as np 
print(V)

     

Program check result

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