# TITLE:  Eq of Tangent Line
# AUTHOR: Roy Maclean 
# EMAIL:  rfamgm at gmail
# WEB:    http://www.spiderpixel.co.uk/caspro        
# DATE:   31Mar1995
# MAKE:   CASIO
# MODEL:  fx7700GE or greater
# SIZE:   39
# NOTES:  Store function in f1,enter xcoord of point.
#         Eq of tangentline will be displayed.


@@ Program 1

"X"?->X
d/dx(f1,X)->M
"Y=MX+C":"M":M_
"C":f1-MX