The number of people on the planet Earth is now...
http://javascriptkit.com/script/script2/worldpop.shtml
 

  Want to know how old you are in dog years?

Enter your age:
Your age in Dog Years is:
http://javascriptkit.com/script/script2/dogcal.shtml
 

  Quadratic Calculator

A quadratic is a curve of the parabola family.
They are written in the format ax2+bx+c=0.

x2+ x+ =0


The area bounded by the curve above the x-axis is: sq. units.
The gradient of the curve at any point is: .
The value of the curve occurs at co-ordinates: .

This free script provided by
JavaScript Kit

http://javascriptkit.com/script/script2/quadratic_cal.shtml