【那个】@stanchcorder6你既然力挺991ES PLUS C,那么拿出实物吧

貌似是代购的

在标题貌似不能at吧
就是，这货根本不知在哪买的

991es PLUS C我有实物，朋友在加拿大代购，马上发图

电脑摄像头，没办法
背板贴纸是英文+法文，说明书也有英文法文两本

喜闻乐见的727,和115+一样

fx-991ES PLUS C/fx-115ES PLUS具有,789没有的功能
repeating decimal (repetend)
preANS (pre answer) in addition to the usual ANS (last answer)
PI(f(x),a,b) (product of a series)
Int (integer function)
Intg (greatest integer function)
Q1 - Median - Q3 (1-variable statistics)
vertex of parabola (quadratic) in addition to the quadratic formula
radical form of quadratics and cubics
g(x) (second TABLE function added to f(x))
INEQ (inequality solutions for quadratics and cubics)
VERIF (verify statements) checks answers to problems
DIST (normal & binomial & poisson distributions)
No-Solution, Infinite Solution (2X2 3X3 Simultaneous Equations)

fx-991ES PLUS C/fx-115ES PLUS具有,789没有的功能
(加粗并说明用途)
repeating decimal (repetend)[不用转换分数]
preANS (pre answer) in addition to the usual ANS (last answer)[代替字母变量,很方便]
PI(f(x),a,b) (product of a series)[求积]
Int (integer function)[取整]
Intg (greatest integer function)[不大于x的最大整数]
Q1 - Median - Q3 (1-variable statistics)
vertex of parabola (quadratic) in addition to the quadratic formula
[抛物线的最值点]
radical form of quadratics and cubics
g(x) (second TABLE function added to f(x))
[同时table两个函数]
INEQ (inequality solutions for quadratics and cubics)
VERIF (verify statements) checks answers to problems
[验证表达式是否成立]
DIST (normal & binomial & poisson distributions)
[概率分布]
No-Solution, Infinite Solution (2X2 3X3 Simultaneous Equations)
[无解无穷解显示,不会出现error]