Geo*_*tas 1 graphics equation r
如何在 R 中绘制方程图
|y| = 1 - |x|
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fun1 <- function(x) 1-abs(x)
fun2 <- function(x) -(1-abs(x))
plot (fun1, -1, 1,xlim=c(-2,2),ylim=c(-2,2),pty="s",col=2);abline(h=0,v=0)
plot (fun2, -1, 1,col=2,add=TRUE)
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