Useful tips for everyday
How does the law of iterated expectation work? The Law of Iterated Expectation states that the expected value of a random variable is equal to…
What is set Linux? Linux set command is used to set and unset certain flags or settings within the shell environment. These flags and settings…
How to tell if two time ranges overlap? 1) Sort all intervals in increasing order of start time. This step takes O(nLogn) time. 2) In…
How do you unlock a locked Galaxy Note 2? Samsung Galaxy Note II Unlock by Hard Reset Power Button + Home + Volume Up Button.…
How do you check email is valid or not php? php $email = “[email protected]”; // Validate email if (filter_var($email, FILTER_VALIDATE_EMAIL)) { echo(“$email is a valid…
How are the principal components of a PCA calculated? pca = PCA (n_components=2) Together, the first two principal components contain 95.80% of the information. The…
How do you send messages on Scratch? There is no way to privately send messages on Scratch, and the Scratch Team has no plans on…
What are electrical schematics? An electrical schematic is a logical representation of the physical connections and layout of an electric circuit. A well documented schematic…
How do I restore my entire Android Backup to my new phone? Get your data onto a new phone On your device, open the Google…
How do you calculate load required? Compare the wattage of your air conditioner and furnace. Since you only use one at a time, add only…