Useful tips for everyday
What is the purpose of the command lsof? lsof command stands for List Of Open File. This command provides a list of files that are…
How are nested list comprehensions used in Python? List Comprehensions are one of the most amazing features of Python. It is a smart and concise…
Can you archive multiple cards in Trello? Perform Bulk Actions Click the board button to open the simplified board view. Here you can select multiple…
How to get re.search to return a string? Also, I doubt you need empty matches, so use + instead of *: The re.search function returns…
Why does my car make a weird noise when I brake? When the brake pads are too worn, the calipers can grind against the rotor…
How do you calculate conditional expectation? The conditional expectation (also called the conditional mean or conditional expected value) is simply the mean, calculated after a…
What does it mean for a Markov chain to be recurrent? A recurrent state has the property that a Markov chain starting at this state…
What causes an object that is not moving to move? An object that is not moving won’t start moving until some force is placed upon…
Is it better to pass by reference or value? Pass-by-references is more efficient than pass-by-value, because it does not copy the arguments. The formal parameter…
How does wing size affect flight? Larger wings move more air, so a bird or plane with a large wing area relative to its mass…