```
Canvas(xlim=c(0,1))
grid()
DrawBezier( x=c(0,0.5,1), y=c(0,0.5,0), col="blue", lwd=2)
DrawBezier( x=c(0,0.5,1), y=c(0,1,0), col="red", lwd=2)
DrawBezier( x=c(0,0.25,0.5,0.75,1), y=c(0,1,1,1,0), col="darkgreen", lwd=2)
```

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