Marcello DeSales marcellodesales

M.S. in C.S. from California State University at San Francisco @2009, B.S. in C.S. from Universidade Federal de Alagoas, Brazil @2002, OSS Engineer

marcellodesales / output.txt

Created April 25, 2012 06:07

Sqrt function (Newton's method) using the Google's GO language... Exercise 43...

	http://tour.golang.org/#43

	As a simple way to play with functions and loops, implement the square root function using Newton's method.

	In this case, Newton's method is to approximate Sqrt(x) by picking a starting point z and then repeating:

	To begin with, just repeat that calculation 10 times and see how close you get to the answer for various values (1, 2, 3, ...).

	The approximation function for the SQRT function returns the given values for the SQRT(4)...

marcellodesales / build.gradle

Created April 24, 2012 10:55

This is a structure of a gradle project that uses a version-controlled Maven repository.

	/*
	* The plugins used for this build.
	*/
	/*
	* Provides the compile, test, jar, etc tasks
	*/
	apply plugin: 'java'

	/*
	* Generates the Eclipse project files.

Created December 2, 2009 01:01

	> db.SondeDataContainer.find( {"observation.pH":4.52, "observation.Battery":1.4} ).explain()
	{
	"cursor" : "BasicCursor",
	"startKey" : {

	},
	"endKey" : {

	},
	"nscanned" : 2419200,

marcellodesales / performance issues on indexed keys

Created December 2, 2009 00:36

	> db.SondeDataContainer.stats()
	{
	"ns" : "netbeams.SondeDataContainer",
	"count" : 2419200,
	"size" : 1170892976,
	"storageSize" : 1358632416,
	"nindexes" : 20,
	"ok" : 1
	}