四则运算器
源码
1、四则运算 + - * / 、括弧()、正负(+ -)
2、百分数 %、求幂 ^ 、整数阶乘 ! (1 至 150)
3、参数符号计算，示例：a+b @@a=1,b=2 结算结果为3
用@@表示表达式中定义符号的值
4、常数e、圆周率PI
5、丰富的函数功能:
统计函数： max,min,sum,avg,stddev 标准偏差，均支持多参数
三角函数: sin,cos,tan,arcsin,arccos,arctan
degrad(60) 角度转弧度
raddeg(3.14) 弧度转角度
costh(a,b,c) 余弦定理 cosC)
指数对数函数：sqrt,power(x,y),abs,exp,log2,log10,logN(a,N),ln
数据处理函数：int(x),trunc(x) 取整
frac(x) 取小数部分
round(x) 四舍五入取整
roundto(x,-1) 保留一位小数
mod(M,N) 求模
几何面积函数：s_tria(a,b,c) 三角形面积
s_circ(r) 圆形面积
s_elli(a,b) 椭圆面积
s_rect(a,b) 矩形面积
s_poly(a,n) 正多边形面积
平面几何函数：pdisplanes(x1,y1,x2,y2) 平面两点距离
pdisspace(x1,y1,z1,x2,y2,z2) 空间两点');
p_line(x0,y0, A, B, C) 平面点到线距离');
p_planes(x0,y0,z0 A, B, C, D)空间点到面距离');
数列求和: sn(a1, d, n) 等差数列前n项和');
sqn(a1, q, n) 等比数列前n项和');
个税计算函数：intax(x), arcintax(x) 个税反算');
5、历史计算记录，双击计算记录可重新修改计算');
示例: sin(1)+(-2+(3-4))*20% , e^63+PI , 15! , log2(max(2,3))');
注: 运算符必须为半角格式，三角函为弧度，输入可用空格间隔');
文件下载
资源详情
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