TI-89 key chart
 
Columns

R
o
w
s
# 7 6 5 4 3 2 1 0
0 alpha dimond shift 2nd right down left up
1 F5 Clear ^ / * - + enter
2 F4 Delete t , 9 6 3 (-)
3 F3 Catalog z ) 8 5 2 .
4 F2 Mode y ( 7 4 1 0
5 F1 Home x = | EE Sto Apps
6 Esc

Ascii Character Chart: