Hello (I apologize for my poor english),

I wrote a little program (in C with TI GCC V0.95 Final not beta) for TI-89 (Warning: don't tested on TI-92 an V200) : SPC89 (V1.0) . This program can help everybody use Statistical Process Control. 

This is freeware. This software is distributed free, as is and used at users risk--usual disclaimer. This software can be freely distributed provided this README is distributed with it. This software may not be sold.

The features of SPC89 are :
	X Chart,
	R Chart,
	Cp and Cpk

Notation :
	m : number of sample
	n : number of observation in subgroup (1<n<16)
	USL and LSL : upper and lower specification limits


Use : SPC89("data") [ENTER]

'data' is a data file. If you forget the name file, a new project start.

	[1] : Add a new sample
	[2] : Display statistical datas : X, R, Xmaxi, Xmini...
	[3] : Display limits control LX, UX, LR, UR
	[4] : Display Cp and Cpk
	[5] : display X chart and R chart
	[6] : Display credit
	[ESC] : Quit Program (auto data save)
 
History :
v1.0 : First version (beta),

Great thank to the TI GCC team for their great work.

For any comments, suggestions or bugs reports, you can sent me an email.

	laurent.damay@u-picardie.fr or lolobrin@club-internet.fr

	Regards,

	Laurent Damay