factory direct sales 991ms scientific calculator student exam essential color flip calculator

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factory direct sales 991ms scientific calculator student exam essential color flip calculator 中文版

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Weight 0.04 kg/piece
Stock num 20000 piece

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13yr.

Main Products:

High,medium and low-grade calculators,counterfeit detector series

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86-15958972843

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功能：

240种计算功能 9种基本计算模式多步重现功能 9个变数 79步输入答案储存错误指示具有修改、插入、删除功能完美的代数法角度单位转换三角函数与反三角函数双曲/反双曲函数尾数（对数、自然对数、常用对数、指数）代数运算（平方根、立方根、根、平方、立方、倒数、阶乘）极坐标/直角坐标变换内部取舍工程符号排列组合随机数输入（π、负号、指数符号）显示格式（小数位数、有效位数字）科学计数法百分率计算分数计算统计计算标准偏差双变量统计（回归）带退位键液晶时钟显示采用AA电池1粒，可持续显示17,000小时尺寸:75(宽)×110(长)×8(厚)mm 重量:125g (含电池)

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