Useful tips for everyday
Why does gpg error say signatures were invalid? GPG error: http://apt.postgresql.org precise-pgdg Release: The following signatures were invalid: KEYEXPIRED 1381654177 The solution is perfectly described…
What are backpropagation networks? Backpropagation in neural network is a short form for “backward propagation of errors.” It is a standard method of training artificial…
Should an email server be in a DMZ? But does this mean corporate email, DNS, and other crucial servers should all be moved from the…
Can Excel pull data from website? Except for transforming data from a web page manually by copying and pasting, Excel Web Queries is used to…
Why numerical differentiation is unstable? Instability of Numerical Differentiation by Finite Approximation. All numerical differentiation methods by finite difference approximation are unstable due to the…
How to remove your home page in Internet Explorer? To remove your homepage: At the top right of your Internet Explorer browser window, click on…
How do I get rid of recent contacts on messages? You go into contacts, copy phone number to clipboard of the contact you want to…
How do I get rid of device enrollment on Mac? Remove an MDM Enrollment Profile Click on the Apple menu icon then go to System…
What is an indirect effect in mediation? An indirect effect is calculated by multiplying the paths that constitute the effect. The magnitude of the indirect…
How to get the post types in WordPress? (array|string) (Optional) An array of key => value arguments to match against the post type objects. (string)…