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1. Top results related to how to define infinity in python

   • How to implement negative infinity in python?

     Top Answer

     Answered Mar 02, 2013 · 62 votes

     Python has special values float('inf') and float('-inf').

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     1/5

   • How to set MySQLdb Connection timeout to infinity in python

     Top Answer

     Answered Sep 25, 2018 · 1 votes

     The problem is the connection is closed from the db server side, what you have to do is;

     • Changing the timeout of mysqlOr more usefull
     • Just reconnect to the db again in your loop

     If you use linux you can use cron to launch your script every X sec, if you use windows use the scheduling task service to launch the script when you desire.

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     2/5

   • How to make summation from 0 to infinity in python?

     Top Answer

     Answered Mar 16, 2017 · 1 votes

     You can't create a range to infinity - To keep the computer counting on and on, you could use a while loop:

     k = 0while True: k += 1 ...

     However, as you can see, this code has the downside it will never end, since the computer will be busy counting on and on: normal numeric methods can't count to "infinity" - you should take a look on the math concepts of infinity before proceeding with your experiments.

     If you want numeric calculations, just choose a "big enough" number. For an algebraic resolution which can_ take infinity into account , check the sympy package.

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     3/5

   • How to define namespace in python?

     Top Answer

     Answered Sep 28, 2016 · 6 votes

     A "namespace" in Python is defined more by the layout of the code on disk than it is with any particular syntax. Given a directory structure of:

     my_code/ module_a/ __init__.py a.py b.py module_b/ __init__.py a.py b.py __init__.py main.py

     and assuming each a.py and b.py file contains a function, fn(), the import syntax to resolve the namespace works like so (from main.py):

     from module_a.a import fn # fn() from module_a/a.pyfrom module_a.b import fn # fn() from module_a/b.pyfrom module_b.a import fn # fn() from module_b/a.pyfrom module_b.b import fn # fn() from module_b/b.py

     At this point, fn() is available within main.py and will call whichever implementation you imported.

     It's also possible to use the from module import * syntax, but this is discouraged in favour of being more specific:

     from module_a.a import *-

     Here, fn() is available within main.py, and also any other symbol defined in module_a/a.py

     .

     If we want to have access to both module_a/a.py's fn() and also the fn() from module_b/b.py, we can do one of two things: either we use the from module import thing as something syntax:

     from module_a.a import fn as module_a_fnfrom module_b.b import fn as module_b_fn-

     and use them in our main.py as module_a_fn() and module_b_fn(), or we can just import the module and reference it directly in the code, so in main.py:

     import module_a.aimport module_a.b-module_a.a.fn() # call fn() from module_a/a.pymodule_a_b.fn() # call fn() from module_a/b.py

     I hope that helps elucidate the usage a bit more.

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     4/5

   • How to define screen in python

     Top Answer

     Answered Jul 02, 2020 · 0 votes

     You need to add screen as an argument to the function student, because the variable screen is defined in the local scope of the function main_screen, so is not visible inside the function student:

     def student(screen): screen1 = Toplevel(screen) # etc

     Having done that, you could use a lambda function with no arguments of its own, in order to construct the relevant command argument for Button that will pass this through, for example if you use:

     Button(text = "Student", height = "2", width = "30", command = lambda: student(screen)).pack()-

     or other possibilities at: How to pass arguments to a Button command in Tkinter?

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     5/5

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2. www.geeksforgeeks.org › python-infinityPython infinity(inf) - GeeksforGeeks

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   Dec 27, 2023 · In this article, we will cover how to fill Nan for complex input values and infinity values with large finite numbers in Python using NumPy. Example: Input: [complex(np.nan,np.inf)] Output: [1000.+1.79769313e+308j] Explanation: Replace Nan with complex values and infinity values with large finite. numpy.nan_to_num method The numpy.nan_to_num method

3. stackoverflow.com › questions › 7781260How can I represent an infinite number in Python? - Stack ...

   stackoverflow.com › questions › 7781260

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   Oct 15, 2011 · math.inf is useful as an initial value in optimisation problems, because it works correctly with min, eg. min(5, math.inf) == 5. For example, in shortest path algorithms, you can set unknown distances to math.inf without needing to special case None or assume an upper bound 9999999.

   Usage example

   TypeError: unorderable types: str() < int()

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4. www.pythoncentral.io › infinity-in-python-how-toInfinity In Python: How to Represent (And Use!) Infinite ...

   www.pythoncentral.io › infinity-in-python-how-to

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   There are four primary methods to representing infinite numbers in Python. Let's quickly see them in action: Method #1: Using float ('inf') and float ('-inf') The first method involves utilizing the float () function to represent positive and negative infinity.

5. www.askpython.com › python › examplesInfinity in Python – Set a Python Variable Value to Infinity

   www.askpython.com › python › examples

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   In this tutorial, we will learn three ways to initialize variables with positive and negative infinity. Along with that, we will also learn how to check whether a variable is infinity or not and also perform some arithmetic operations on these variables. Let’s get started.

6. note.nkmk.me › en › python-inf-usageInfinity (inf) in Python | note.nkmk.me

   note.nkmk.me › en › python-inf-usage

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   Aug 11, 2023 · In Python, you can use inf to represent infinity. This article explains how to create, operate, check, and compare inf (infinity).

7. flexiple.com › python › python-infinityPython Infinity - All you need to know | Flexiple Tutorials ...

   flexiple.com › python › python-infinity

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   Mar 14, 2022 · Infinity is defined as something that has no end, therefore is not represented as an integer. We know that all arithmetic operations performed on an infinite value will give an infinite value. It is represented as a float value. So, Let's get to know about all the methods for representing both positive and negative infinite value.

8. People also ask

   How to represent infinity in Python?

   • As of 2020, there is no such way to represent infinity as an integer in any programming language so far. But in Python, as it is a dynamic language, float values can be used to represent an infinite integer. One can use float (‘inf’) as an integer to represent it as infinity. Below is the list of ways one can represent infinity in Python. 1.

   Python infinity(inf) - GeeksforGeeks

   www.geeksforgeeks.org/python-infinity/

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   How to initialize variables to infinity in Python?

   • The third method for initializing variables to infinity is by using the math module in python. Let’s start by importing the module. To set a variable to positive infinity using Math module use the following line of code : Output :

   Infinity in Python – Set a Python Variable Value to Infinity

   www.askpython.com/python/examples/infinity-in-python

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   How to represent infinite numbers in Python?

   • There are four primary methods to representing infinite numbers in Python. Let's quickly see them in action: The first method involves utilizing the float () function to represent positive and negative infinity. To represent positive infinity, you can pass 'inf' as the argument, while '-inf' represents negative infinity. The output of this code is:

   Infinity In Python: How to Represent (And Use!) Infinite Numbers

   www.pythoncentral.io/infinity-in-python-how-to-represent-and-use-infinite-numbers/

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   How to represent infinity as a float in Python?

   • As infinity can be both positive and negative they can be represented as a float (‘inf’) and float (‘-inf’) respectively. The below code shows the implementation of the above-discussed content: Output: 2. Using Python’s Math Module Python’s math module can also be used for representing infinite integers.

   Python infinity(inf) - GeeksforGeeks

   www.geeksforgeeks.org/python-infinity/

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9. ioflood.com › blog › python-infinityPython Infinity: Syntax, Uses, and Examples - ioflood.com

   ioflood.com › blog › python-infinity

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   Aug 26, 2023 · In this article, we’ve journeyed through the limitless world of Python infinity. We started with the basics, understanding how to represent positive and negative infinity in Python using float('inf') and float('-inf') respectively.