Useful tips for everyday
What is the variance of rolling a dice? When you roll a single six-sided die, the outcomes have mean 3.5 and variance 35/12, and so…
What are the parts of Arduino Uno? The major components of Arduino UNO board are as follows: USB connector. Power port. Microcontroller. Analog input pins.…
How do you find the parameter of a lognormal distribution? Lognormal distribution formulas Mean of the lognormal distribution: exp(μ + σ² / 2) Median of…
How do I check CPU availability? You can use one of the following command to find the number of physical CPU cores including all cores…
Does session manager need public IP? The SSM Agent running on the EC2 instances must be able to connect to Session Manager’s public endpoint. You…
How do you create a PDF form that can be filled out and email? How to create fillable PDF files: Open Acrobat: Click on the…
How to replace entire line in text file by Bash? I’m not trying to replace some sub-string in that line, I just want to replace…
What is a sargable predicate? In relational databases, a condition (or predicate) in a query is said to be sargable if the DBMS engine can…
How do you connect ESP 01S relay? Plug the ESP-01S module to the 2*4 pin header after download the code to ESP-01/01S. 3. Connect a…
How the speed of a DC motor can be increased or decreased? The speed of rotation of an electric motor can be varied based on…