I'll start, currently my favorite number is 11.
Not only is it prime and reminds me of the first manned spacecraft to land on the Moon. I love how it's used. Multiplication of course is very simple. For single digits you just repeat the digit, you can also multiply any two digit number by eleven instantly by adding the numbers together and putting the sum between the original digits (32 x 11 = 352) with similar shortcuts for greater numbers of digits.
There are several divisibility tests, my favorite method is repeatedly subtracting the last digit from the remaining digits, for example:
Is 51,381 divisible by 11?
5138 - 1 = 5137
513 - 7 = 506
50 - 6 = 44
4 - 4 = 0
This method also gives you the quotient, so not only do we know that 51,381 is in fact divisible by 11, but is divisible 4,671 times.
So how about you, got a favorite number?
If you are using command line tools such as #NPM , #Gulp , #Grunt and the like, here is a tip that will save you some time.
Typically, to run a command, you'll do the following:
1. Open the command prompt.
2. Change to the proper drive.
3. CD to a subfolder down in the heart of the drive.
4. Finally run the command you need.
You can avoid such needless typing by creating a shortcut that opens the command prompt right to the folder you want. Here's how:
1. Right-click on your desktop and choose New > Shortcut
2. For the location put in:
C:\Windows\System32\cmd.exe /K "cd /d [Full Path to the Folder]"
3. Click Next, Set a Name and Click Finish
4. Leave it on your desktop, or drag it to your Taskbar to pin it there.
Simply click the shortcut and the command window opens to the proper folder ready for use.
Bonus: Once you have a shortcut, you can customize the display using Right-click > Properties on the command window with settings such as:
- Changing the font style
- Decreasing the font size
- Increasing the window size
- Increasing the screen buffer
- Customizing colors
- Stanford UniversityComputer ScienceI strongly believe that continuous education is the only way to successfully evolve and grow. Ongoing professional development is a key discipline to master in the rapidly changing field of computer science. As I continually strive to refine my skills, I took several courses from Stanford online.
- CoStar GroupSenior Software Engineer, 2000 - present
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