Normal curve or Bell curve

[Stellaferox]

Hi all,

Here is a little program to play with. It is aBell curve or normal curve, which signifies the distribution of a lot of natural things in a population, e.g. intelligence. This example starts with th IQ (average 100 in the population) but you can change it in what you want (from the source code until now).
There is not a help file yet, but I am counting on some feedback to improve the program.
Some features will be included, like focus on the textboxes when changed and instant graph adaption when the mean and standard deviation are changed. It was just a project to play with graphs.....
Any inout is appreciated...
thnx
Marc

[Stellaferox]

forgot the code... here it is....with update dd july 8th