你的计算机是什么牌子的？如果是 CASIO ( fx-570W )SVPAM 的话,
1) change ur mode to SD
2) key in ur data, lets say 2,3,4,5, u press button 2, then button M+, continue wif next data.
3) thr is a quick reference note given. so juz follow e instructions.
ie, if u wanna find n, then press button RCL and button C. u will get e answer as shown on e screen, in this case n=4.
hope it does help ~~~
Thank you so much! It works :D
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