Understanding the Chances of Winning Lotto 6 49
Docco.coffee requires the following to run.
Step 1:
Download and install Node.js and Python 2.7. Python 3.2 might work but I haven’t yet tried it out.
Step 2:
Add the root and ‘node_modules’ directories for node.js and the root and “Script” directory for python 2.7 to your path environment variable.
C:\nodejs;%userprofile%\node_modules\.bin;C:\python27;C:\Python27\Scripts;
Step 3:
Open up a command prompt, start -> run -> type “cmd”.
Type npm install coffee-script
*You should see installation output on the screen*
Type npm install docco
*You should see installation output on the screen*
Step 4:
Download ez_setup
In command prompt, navigate to where you downloaded ez_setup.py.
Type in python ez_setup.py.
Step 5:
In command prompt type easy_install pygments to install Pygments.
Done.
Test
Download ‘underscore.js’ to your desktop.
Open up a command prompt and type in docco %userprofile%\desktop\underscore.js.
You should see two output files, “p” and “docs”.
The annotated source code is the html file in the docs folder.
Enjoy!
By Larry Battle
The following are 10 simple steps that you can take to successfully turn your idea into a marketable product or service. This guide is more geared to software startups.
Done.
Summary:
This tutorial will provide a simple overview of logarithms.
What are Logarithms?
Logarithms are used to determine the exponent needed to receive a certain value with a particular base.
Example: Log 100 = 2. Since 10^2 = 100.
Here’s a short video explaining logarithms more in-depth with a practical example.
The most common bases used for logarithms are base 10 and E. With base E logarithms normally referred to as the natural logarithm.
In Javascript, the function Math.log returns the natural logarithm of the argument instead of a base 10 logarithm. This can cause some confusion for those unaware of this fact.
Math.log( 100 ) == 2 // returns false Math.log( 100 ) // returns 4.605170185988092 |
So how can one use a different base other than E? Well, it simple. All you have to do is take the log of the value that you want, then divide that by the log of the desired based.
Like so.
Math.log( x ) / Math.log( desiredBase ); |
Here’s a user defined function that does the same operation.
/** * @function Math.logx * @purpose: To provide the logarithm for any base desired. Default base is 10. * @returns a number. */ Math.logx = function(x,base) { return (Math.log(x)) / (Math.log(base | 10 )); } |
And now, we can calculate log 10 as 2 instead of another number.
Math.log( 100 ) == 2 // returns false Math.logx( 100 ) == 2 // returns true |