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Python Math: Create a range for floating numbers

Python Math: Exercise-72 with Solution

Write a Python program to create a range for floating numbers.

Sample Solution:-

Python Code:

#https://gist.github.com/axelpale/3e780ebdde4d99cbb69ffe8b1eada92c
def frange(x, y, jump=1.0):
    i = 0.0
    x = float(x)  # Prevent yielding integers.
    y = float(y)  # Comparison converts y to float every time otherwise.
    x0 = x
    epsilon = jump / 2.0
    yield x  # yield always first value
    while x + epsilon < y:
        i += 1.0
        x = x0 + i * jump
        yield x

print(list(frange(0.0, 1.0, 0.1)))

Sample Output:

[0.0, 0.1, 0.2, 0.30000000000000004, 0.4, 0.5, 0.6000000000000001, 0.7000000000000001, 0.8, 0.9, 1.0]

Flowchart:

Flowchart: Create range for floating numbers

Visualize Python code execution:

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Python Code Editor:

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m