Learn Math. Problem with integer part and powers

Continue reading## Create a PDF file from a set of images (using IrfanView)

From the “Options” menu, chose “Multipage images ” submenu, then select “Create Multipage PDF”. You need to have installed the

Continue reading## How to get the list of the hard drives in Linux (CentOS 7)

The command is: lsblk | grep sd Please click on the image below to enlarge it. How to get the

Continue reading## 13 Math Superstitions Explained (#1)

13 Math Superstitions Explained (#1)

Continue reading## What is the next number in the sequence 0, 1, 8, 27, 64 ?

What is the next number in the sequence 0, 1, 8, 27, 64 ?

Continue reading## What is the next number in the sequence 0, 1, 4, 9, 16 ?

What is the next number in the sequence 0, 1, 4, 9, 16 ?

Continue reading## What is the missing number in the sequence 0, 3, …, 9, 12 ?

What is the missing number in the sequence 0, 3, …, 9, 12 ?

Continue reading## What is the next number in the sequence 0, 3, 6, 9, 12 ? [silent video]

http://lunlun.com/videos/830.mp4 What is the next number in the sequence 0, 3, 6, 9, 12 ? [silent video]

Continue reading## What is the next number in the sequence 0, 3, 6, 9, 12 ?

What is the next number in the sequence 0, 3, 6, 9, 12 ?

Continue reading## Complex numbers (problem and solution)

Complex numbers (problem and solution)

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