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文档摘要

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第八章数学运算与模拟

1、数学函数exp(x)；log(x)；log10(x)；sqrt(x)abs(x)sin(x)；cos(x)min(x);max(x)which.min(x);which.max(x)pmin(x);pmax(x)#对多个向量进行逐元素对比，并返回各个最大值sum(x);prod(x)#求和/求积cumsum(x);cumprod(x)#前K个元素累计求和/求积round(x);floor(x);ceiling(x)#四舍五入/向下取整/向上取整factorial(x)#阶乘

x-c(2,3,4)y-c(3,1,5)z-c(5,